View Filing Data

Fair Value, Inputs, Level 1 [Member]

$ 11,900

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value, Inputs, Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value, Inputs, Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

March 2023 Senior Convertible Note [Member]

11,900

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

March 2023 Senior Convertible Note [Member] | Fair Value, Inputs, Level 1 [Member]

11,900

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

March 2023 Senior Convertible Note [Member] | Fair Value, Inputs, Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

March 2023 Senior Convertible Note [Member] | Fair Value, Inputs, Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Schedule of Incurred Expenses of Minority Shareholders

$ 11,900

[1]	There were no transfers between the respective Levels during the period ended March 31, 2023.

Related Party Transactions (Tables)

3 Months Ended

Mar. 31, 2023

	2023		2022
	Three Months Ended March 31,
	2023		2022
Cost of Revenue
CWRU – Royalty Fees	$	24	$	9

General and Administrative Expense
Stock-based compensation expense – Physician Inventors’ restricted stock awards		180		272

Research and Development Expense
Amended CWRU – License Agreement - reimbursement of patent legal fees		389		—
Fees - Physician Inventors’ consulting agreements		1		8
Sponsored research agreement		—		3
Stock-based compensation expense – Physician Inventors’ stock options		52		46
Total Related Party Expenses	$	646	$	338

Schedule of MSA Fee Expense Classification in Statements of Operations

	2023		2022
	Three Months Ended March 31,
	2023		2022
Sales & Marketing		109		183
General & Administrative		1,554		640
Research & Development		587		347
Total MSA Fee	$	2,250	$	1,170

Due To PAVmed Inc (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Schedule of Senior Unsecured Promissory Note

The aggregate Due To: PAVmed Inc. for the periods indicated is summarized as follows:

	PAVmed Inc. OBO Payments			Employee- Related Costs		MSA Fees		Total
Balance - December 31, 2022	$	284		$	3,026	$	1,650	$	4,960
MSA fees		—			—		2,250		2,250
On Behalf Of (OBO) activities		219			—		—		219
ERC - Payroll & Benefits		—			484		—		484
Cash payments to PAVmed Inc.		(286	)		—		—		(286	)
Balance - March 31, 2023	$	217		$	3,510	$	3,900	$	7,627

Revenue from Contracts with Customers (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 446	$ 189
Cost of revenue	1,338
EsoGuard Commercialization Agreement [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customer		189
Payment for fixed monthly fee		100
Cost of revenue		$ 369
EsoGuard Test [Member]
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 446

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479941/924-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 30
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-30

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 22
-Subparagraph (b)
-Publisher FASB
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 32
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 40
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-40

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Subparagraph (a)
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 32
-Subparagraph (a)
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-4

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Senior Unsecured Promissory Note (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Short-Term Debt [Line Items]
Balance - December 31, 2022	$ 4,960
MSA fees	2,250
On Behalf Of (OBO) activities	219
ERC - Payroll & Benefits	484
Cash payments to PAVmed Inc.	(286)
Balance - March 31, 2023	7,627
OBO Payments [Member]
Short-Term Debt [Line Items]
Balance - December 31, 2022	284
MSA fees
On Behalf Of (OBO) activities	219
ERC - Payroll & Benefits
Cash payments to PAVmed Inc.	(286)
Balance - March 31, 2023	217
ERC Payroll Benefits [Member]
Short-Term Debt [Line Items]
Balance - December 31, 2022	3,026
MSA fees
On Behalf Of (OBO) activities
ERC - Payroll & Benefits	484
Cash payments to PAVmed Inc.
Balance - March 31, 2023	3,510
MSA Fees [Member]
Short-Term Debt [Line Items]
Balance - December 31, 2022	1,650
MSA fees	2,250
On Behalf Of (OBO) activities
ERC - Payroll & Benefits
Cash payments to PAVmed Inc.
Balance - March 31, 2023	$ 3,900

Related Party Transactions (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Pavmed Inc [Member]
Related Party Transaction [Line Items]
MSA fee	$ 750	$ 390

Intangible Assets, net (Tables)

3 Months Ended

Mar. 31, 2023

Schedule of Intangible Assets Accumulated Amortization

Intangible assets, less accumulated amortization, consisted of the following as of:

	Estimated Useful Life	March 31, 2023			December 31, 2022
Defensive technology	60 months	$	2,105		$	2,105
Laboratory licenses and certifications and laboratory information management software	24 months		3,200		$	3,200
Total Intangible assets			5,305			5,305
Less Accumulated Amortization			(2,365	)		(1,860	)
Intangible Assets, net		$	2,940		$	3,445

Schedule of Future Amortization Expense


2023 (remainder of year)	$	1,516
2024		688
2025		421
2026		315
Total	$	2,940

Financial Instruments Fair Value Measurements (Details Narrative) - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 21, 2023
Fair Value Disclosures [Abstract]
Face value principal payable	$ 11,111	$ 11,100

Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule of Basic and Fully Diluted Net Loss Per Share

The “Net loss per share basic and diluted” for the respective periods indicated - is as follows:

	2023			2022
	Three Months Ended March 31,
	2023			2022
Numerator
Net loss	$	(16,247	)	$	(12,270	)

Denominator
Weighted average common shares outstanding, basic and diluted		40,970,504			35,123,039

Net loss per share
Net loss per share - basic and diluted	$	(0.40	)	$	(0.35	)

Schedule of Anti-dilutive Securities Excluded from Computation of Diluted Earnings Per Share

	2023		2022
	March 31,
	2023		2022

Stock options		5,052,458		2,864,427
Unvested restricted stock awards		1,872,100		2,260,740
Preferred stock		13,695,850		—
Total		20,620,408		5,125,167

Schedule of Future Amortization Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
2023 (remainder of year)	$ 1,516
2024	688
2025	421
2026	315
Total	$ 2,940	$ 3,445

Schedule Of Future Lease Payments Of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Leases
2023 (remainder of year)	$ 870
2024	1,071
2025	65
Total lease payments	2,006
Less: imputed interest	(129)
Present value of lease liabilities	$ 1,877	$ 1,999

Stockholders’ Equity

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Stockholders’ Equity

Note 13 — Stockholders’ Equity

Series A Preferred Stock Offering

On March 7, 2023, the Company issued 13,625 shares of newly designated Series A Convertible Preferred Stock, par value $0.001 per share (the “Series A Preferred Stock”), to accredited investors at a purchase price of $1,000 per share, for aggregate gross proceeds to the Company of $13.625 million. In connection with the issuance the Company filed a Certificate of Designation of Preferences, Rights and Limitations of the Series A Preferred Stock with the Secretary of State of the State of Delaware (the “Certificate of Designation”). The key terms of the Series A Preferred Stock are as follows:

Each share of Series A Preferred Stock is convertible at the option of the holder, subject to certain beneficial ownership limitations into such number of shares of the Company’s common stock, equal to the number of Series A Preferred Shares to be converted, multiplied by the stated value of $1,000 (the “Stated Value”), divided by the conversion price in effect at the time of the conversion. The initial conversion price will be $1.394, subject to adjustment in the event of stock splits, stock dividends, and similar transactions. The Series A Preferred Stock is convertible into shares of our common stock at any time at the option of the holder from and after the six-month anniversary of its issuance, and automatically converts into shares of our common stock on March 7, 2025, the second anniversary of its issuance.

The Series A Preferred Stock will be senior to the Common Stock and any other class of the Company’s capital stock that is not by its terms senior to or pari passu with the Series A Preferred Stock.

The holders of Series A Preferred Stock will be entitled to dividends payable as follows: (i) a number of shares of Common Stock equal to 20% of the number of shares of Common Stock issuable upon conversion of the Series A Preferred Stock then held by such Holder on March 7, 2024, and (ii) a number of shares of Common Stock equal to 20% of the number of shares of Common Stock issuable upon conversion of the Series A Preferred Stock then held by such Holder on March 7, 2025. A holder that converts its Series A Preferred Stock prior to March 7, 2024 or March 7, 2025, as the case may be, will not receive the dividend that accrues on such date with respect to such converted Series A Preferred Stock. The holders of the Series A Preferred Stock also will be entitled to dividends equal, on an as-if-converted to shares of Common Stock basis, to and in the same form as dividends actually paid on shares of the Common Stock when, as, and if such dividends are paid on shares of the Common Stock.

In the event of any voluntary or involuntary liquidation, dissolution or winding up of the Company (or any Deemed Liquidation Event as defined in the Certificate of Designation), the holders of shares of Series A Preferred Stock then outstanding will be entitled to be paid out of the assets of the Company available for distribution to its stockholders, before any payment shall be made to the holders of Common Stock by reason of their ownership thereof, an amount per share equal to the greater of (i) the Stated Value, plus any dividends accrued but unpaid thereon, or (ii) such amount per share as would have been payable had all shares of Series A Preferred Stock been converted into Common Stock immediately prior to such event.

Except as otherwise provided in the Certificate of Designation or as otherwise required by law, the holders of outstanding shares of Series A Preferred Stock will have no voting rights.

The Company will not effect any conversion of the Series A Preferred Stock, and a holder will not have the right to receive dividends or convert any portion of the Series A Preferred Stock, to the extent that, after giving effect to the receipt of dividends or the conversion, the holder (together with such holder’s affiliates, and any persons acting as a group together with such holder or any of the holder’s affiliates) would beneficially own in excess of 4.99% of the Company’s outstanding common stock (or, upon election of the holder, 9.99% of the Company’s outstanding common stock).

Note 13 — Stockholders' Equity - continued

The Company and the investors in the offering also executed a registration rights agreement (the “Registration Rights Agreement”), pursuant to which the Company agreed to file a registration statement covering the resale of the shares of Common Stock issuable pursuant to the Series A Preferred Stock.

Lucid Diagnostics Common Stock

As of March 31, 2023 and December 31, 2022 there were 41,753,603 and 40,518,792 shares of common stock issued and outstanding, respectively. As of March 31, 2023, PAVmed holds 31,302,420 shares, representing a majority-interest equity ownership and PAVmed has a controlling financial interest in the Company.

Committed Equity Facility and ATM Facility

On March 28, 2022, the Company entered into a committed equity facility with an affiliate of Cantor Fitzgerald (“Cantor”). Under the terms of the committed equity facility, Cantor has committed to purchase up to $50 million of the Company’s common stock from time to time at the request of the Company. While there are distinct differences, the facility is structured similarly to a traditional at-the-market equity facility, insofar as it allows the Company to raise primary equity capital on a periodic basis at prices based on the existing market price. Cumulatively a total of 680,263 shares of Lucid Diagnostics’ common stock were issued for net proceeds of approximately $1.8 million, after payment of 4% commissions, as of March 31, 2023.

In November 2022, the Company entered into an “at-the-market offering” for up to $6.5 million of its common stock that may be offered and sold under a Controlled Equity Offering Agreement between the Company and Cantor Fitzgerald & Co. In the three months ended March 31, 2023, the Company sold 230,068 shares through the at-the-market equity facility for net proceeds of approximately $0.3 million, after payments of 3% commissions.

The entire disclosure for equity.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 505
-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481004/946-505-50-6

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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-Name Accounting Standards Codification
-Section S99
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Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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-Name Accounting Standards Codification
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147481112/505-10-50-14

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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Reference 17: http://www.xbrl.org/2003/role/disclosureRef
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-Subparagraph (a)
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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-URI https://asc.fasb.org//1943274/2147481112/505-10-50-18

Summary of Outstanding Debt

Stockholders’ Equity (Details Narrative) - USD ($)			3 Months Ended
Stockholders’ Equity (Details Narrative) - USD ($)	Mar. 07, 2023	Mar. 28, 2022	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Nov. 30, 2022
Class of Stock [Line Items]
Designated preferred stock, shares			20,000,000		20,000,000
Preferred stock, per share			$ 0.001		$ 0.001
Preferred stock, stated value			$ 13,625,000
Common stock, shares issued			41,753,603		40,518,792
Common stock, shares outstanding			41,753,603		40,518,792
Proceeds from issuance of common stock			$ 284,000
Common Stock, Value, Issued			$ 42,000		$ 41,000
Commited Equity Facility [Member]
Class of Stock [Line Items]
Sale of Stock, Percentage of Ownership after Transaction			4.00%
Controlled Equity Offering Agreement [Member]
Class of Stock [Line Items]
Sale of Stock, Percentage of Ownership after Transaction			3.00%
Common Stock, Value, Issued						$ 6,500,000
Sale of Stock, Number of Shares Issued in Transaction			230,068
Sale of Stock, Consideration Received Per Transaction			$ 300,000
Cantor Fitzgerald [Member] \| Commited Equity Facility [Member]
Class of Stock [Line Items]
Sale of Stock, Consideration Received on Transaction		$ 50,000,000
Issuance of common stock		680,263
Proceeds from issuance of common stock		$ 1,800,000
Lucid Diagnostics Inc [Member]
Class of Stock [Line Items]
Majority-interest equity ownership shares			31,302,420
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Designated preferred stock, shares	13,625
Preferred stock, per share	$ 0.001
Share price, per share	$ 1,000
Proceeds from convertible preferred stock	$ 13,625,000
Preferred stock, stated value	$ 1,000
Preferred stock, conversion price per share	$ 1.394
Preferred stock dividend payment terms	The holders of Series A Preferred Stock will be entitled to dividends payable as follows: (i) a number of shares of Common Stock equal to 20% of the number of shares of Common Stock issuable upon conversion of the Series A Preferred Stock then held by such Holder on March 7, 2024, and (ii) a number of shares of Common Stock equal to 20% of the number of shares of Common Stock issuable upon conversion of the Series A Preferred Stock then held by such Holder on March 7, 2025. A holder that converts its Series A Preferred Stock prior to March 7, 2024 or March 7, 2025, as the case may be, will not receive the dividend that accrues on such date with respect to such converted Series A Preferred Stock. The holders of the Series A Preferred Stock also will be entitled to dividends equal, on an as-if-converted to shares of Common Stock basis, to and in the same form as dividends actually paid on shares of the Common Stock when, as, and if such dividends are paid on shares of the Common Stock
Conversion of stock, description	The Company will not effect any conversion of the Series A Preferred Stock, and a holder will not have the right to receive dividends or convert any portion of the Series A Preferred Stock, to the extent that, after giving effect to the receipt of dividends or the conversion, the holder (together with such holder’s affiliates, and any persons acting as a group together with such holder or any of the holder’s affiliates) would beneficially own in excess of 4.99% of the Company’s outstanding common stock (or, upon election of the holder, 9.99% of the Company’s outstanding common stock)

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash	$ 39,522	$ 22,474
Accounts receivable	27	17
Prepaid expenses, deposits, and other current assets	2,172	1,865
Total current assets	41,721	24,356
Fixed assets, net	1,502	1,592
Operating lease right-of-use assets	1,884	2,008
Intangible assets, net	2,940	3,445
Other assets	1,078	1,108
Total assets	49,125	32,509
Current liabilities:
Accounts payable	625	1,056
Accrued expenses and other current liabilities	2,190	1,447
Operating lease liabilities, current portion	1,051	962
Senior Secured Convertible Note - at fair value	11,900
Due To: PAVmed Inc. - MSA Fee and operating expenses	7,627	4,960
Total current liabilities	23,393	8,425
Operating lease liabilities, less current portion	826	1,037
Total liabilities	24,219	9,462
Commitments and contingencies
Stockholders’ Equity:
Preferred stock, $0.001 par value, 20,000,000 shares authorized; Series A Convertible Preferred Stock, issued and outstanding 13,625 at March 31, 2023 and no shares issued and outstanding at December 31, 2022	13,625
Common stock, $0.001 par value, 100,000,000 shares authorized; 41,753,603 and 40,518,792 shares issued and outstanding as of March 31, 2023 and December 31, 2022, respectively	42	41
Additional paid-in capital	125,561	121,081
Accumulated deficit	(114,322)	(98,075)
Total Stockholders’ Equity	24,906	23,047
Total Liabilities and Stockholders’ Equity	$ 49,125	$ 32,509

Debt (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

The fair value and face value principal outstanding of the March 2023 Senior Convertible Note as of the dates indicated are as follows:

Summary of Outstanding Debt

Contractual

Maturity

Date

Stated

Interest

Rate

Conversion

Price per

Face Value

Principal

Outstanding

Fair Value

March 2023 Senior Convertible Note

March 21, 2025

7.875

5.00

11,111

11,900

Balance as of March 31, 2023

11,111

11,900

Schedule of Changes in Fair Value of Debt

The changes in the fair value of debt during the three months ended March 31, 2023 is as follows:

	March 2023 Senior Convertible Note		Other Income (expense)
Fair Value - December 31, 2022	$	—	$	—
Face value principal – issue date		11,111		—
Fair value adjustment – issue date		789		(789	)
Change in fair value		—		—
Fair Value at March 31, 2023	$	11,900		-
Other Income (Expense) - Change in fair value – three months ended March 31, 2023			$	(789	)

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net loss	$ (16,247)	$ (12,270)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization expense	612	24
Stock-based compensation - Lucid Diagnostics Inc. 2018 Equity Plan	2,817	3,537
Stock-based compensation - PAVmed Inc. 2014 Equity Plan	391	298
Change in fair value - Senior Secured Convertible Note	789
Loss on issue and offering costs - Senior Secured Convertible Note	1,186
APA-RDx: Issue common stock - settle termination payment	713
Changes in operating assets and liabilities:
Accounts receivable	(10)	111
Prepaid expenses and other current assets	(275)	168
Accounts payable	(431)	1,958
Accrued expenses and other current liabilities	743	285
Due To: PAVmed Inc. - operating expenses, employee related costs, MSA Fee	2,667	113
Net cash flows used in operating activities	(7,045)	(5,776)
Cash flows from investing activities
Purchase of equipment	(17)	(148)
Net cash flows used in investing activities	(17)	(148)
Cash flows from financing activities
Proceeds – issue of preferred stock	13,625
Proceeds – issue of Senior Convertible Note, net of offering cost	9,925
Proceeds – issue of common stock – At-The-Market Facility	284
Proceeds – exercise of stock options		187
Proceeds – issue common stock – Employee Stock Purchase Plan	276
Net cash flows provided by financing activities	24,110	187
Net increase (decrease) in cash	17,048	(5,737)
Cash, beginning of period	22,474	53,656
Cash, end of period	$ 39,522	$ 47,919

Related Party Transactions

3 Months Ended

Mar. 31, 2023

Related Party Transactions

Note 4 — Related Party Transactions

Case Western Reserve University and Physician Inventors - Amended CWRU License Agreement

Case Western Reserve University (“CWRU”) and each of the three physician inventors (“Physician Inventors”) of the intellectual property licensed under the amended and restated patent license agreement with CWRU, dated August 23, 2021 (the “Amended CWRU License Agreement”), each hold a minority equity ownership interest in Lucid Diagnostics Inc. The expenses incurred with respect to the Amended CWRU License Agreement and the three Physician Inventors, as classified in the accompanying unaudited condensed consolidated statement of operations for the periods indicated are summarized as follows:

	2023		2022
	Three Months Ended March 31,
	2023		2022
Cost of Revenue
CWRU – Royalty Fees	$	24	$	9

General and Administrative Expense
Stock-based compensation expense – Physician Inventors’ restricted stock awards		180		272

Research and Development Expense
Amended CWRU – License Agreement - reimbursement of patent legal fees		389		—
Fees - Physician Inventors’ consulting agreements		1		8
Sponsored research agreement		—		3
Stock-based compensation expense – Physician Inventors’ stock options		52		46
Total Related Party Expenses	$	646	$	338

Note 4 — Related Party Transactions - continued

PAVmed Inc. - Management Services Agreement

The Company’s daily operations are also managed in part by personnel employed by PAVmed, for which the Company incurs a service fee, referred to as the “MSA Fee”, according to the provisions of a Management Services Agreement (“MSA”) with PAVmed. The MSA does not have a termination date, but may be terminated by the Company’s board of directors. The MSA Fee is charged on a monthly basis and is subject-to periodic adjustment corresponding with changes in the services provided by PAVmed personnel to the Company, with any such change in the MSA Fee being subject to approval of the boards of directors of each of the Company and PAVmed. The respective companies’ boards of directors approved a seventh amendment to the MSA to increase the MSA Fee to $750 per month, effective January 1, 2023, which was entered into by PAVmed and the Company on May 9, 2023. During the three months ended March 31, 2022, MSA Fees were $390 per month.

Note 4 — Related Party Transactions - continued

The MSA Fee expense classification in the unaudited condensed consolidated statement of operations for the periods noted is as follows:

	2023		2022
	Three Months Ended March 31,
	2023		2022
Sales & Marketing		109		183
General & Administrative		1,554		640
Research & Development		587		347
Total MSA Fee	$	2,250	$	1,170

The classification of the MSA Fee as presented above is based on the PAVmed classification of employee salary expense and other operating expenses. In this regard, PAVmed classifies employee salary expense as sales and marketing expenses for employees performing sales, marketing, and reimbursement activities and functions, general and administrative, and research and development except for those employees who are engaged in product and services engineering development and design and /or clinical trials activities, for which such employee salary is classified as research and development expense.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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Stock-Based Compensation (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2023	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Proceeds for issuance		$ 276
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Restricted stock awards granted
2018 Equity Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares reserved		11,644,000
Shares available for issue		3,834,058
Stock option grants		423,300		423,300
Increased in number of shares available for grant	2,500,000
2018 Equity Plan [Member] \| Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Restricted stock awards granted		50,000		50,000
2018 Equity Plan [Member] \| Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted average estimated fair value		$ 0.87	$ 2.95
Employee Stock Purchase Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares reserved		1,000,000
Shares available for issue	500,000	683,983
Number of common stock purchased		231,987
Proceeds for issuance		$ 276

Schedule of Unrecognized Compensation Expense and Weighted Average Remaining Service Period (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Share-Based Payment Arrangement, Option [Member] \| 2018 Equity Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized Expense	$ 4,806
Weighted Average Remaining Service Period (Years)	2 years 6 months
Share-Based Payment Arrangement, Option [Member] \| PAVmed Inc 2014 Equity Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized Expense	$ 1,165
Weighted Average Remaining Service Period (Years)	1 year 4 months 24 days
Restricted Stock [Member] \| 2018 Equity Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized Expense	$ 1,706
Weighted Average Remaining Service Period (Years)	1 year 1 month 6 days
Restricted Stock [Member] \| PAVmed Inc 2014 Equity Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized Expense
Weighted Average Remaining Service Period (Years)	0 years

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Schedule Of Cash Flow Supplemental Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Leases
Operating cash flows from operating leases	$ 285	$ 224
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 125	$ 2,404
Weighted-average remaining lease term - operating leases (in years)	1 year 9 months 7 days	2 years 8 months 19 days
Weighted-average discount rate - operating leases	7.875%	7.875%

Schedule of Basic and Fully Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net loss	$ (16,247)	$ (12,270)
Weighted average common shares outstanding, basic and diluted	40,970,504	35,123,039
Net loss per share - basic and diluted	$ (0.40)	$ (0.35)

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Financial Instruments Fair Value Measurements

Cover - shares	3 Months Ended
Cover - shares	Mar. 31, 2023	May 11, 2023
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2023
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--12-31
Entity File Number	001-40901
Entity Registrant Name	LUCID DIAGNOSTICS INC.
Entity Central Index Key	0001799011
Entity Tax Identification Number	82-5488042
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	360 Madison Avenue
Entity Address, Address Line Two	25th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10017
City Area Code	(212)
Local Phone Number	949-4319
Title of 12(b) Security	Common Stock, $0.001 par value per share
Trading Symbol	LUCD
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Elected Not To Use the Extended Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		43,725,703

Schedule of Changes in Fair Value of Debt (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Short-Term Debt [Line Items]
Fair value adjustment – issue date	$ 789
Fair Value at March 31, 2023	11,900
Other Income (Expense) - Change in fair value	(789)
Other Operating Income (Expense) [Member]
Short-Term Debt [Line Items]
Fair Value - December 31, 2022
Face value principal – issue date
Fair value adjustment – issue date	(789)
Change in fair value
Fair Value at March 31, 2023
March 2023 Senior Convertible Note [Member]
Short-Term Debt [Line Items]
Fair Value - December 31, 2022
Face value principal – issue date	11,111
Fair value adjustment – issue date	789
Change in fair value
Fair Value at March 31, 2023	$ 11,900

Financial Instruments Fair Value Measurements

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Note 10 — Financial Instruments Fair Value Measurements

Recurring Fair Value Measurements

The fair value hierarchy table for the reporting date noted is as follows:

	Fair Value Measurement on a Recurring Basis at Reporting Date Using¹
	Level-1 Inputs		Level-2 Inputs		Level-3 Inputs		Total
March 31, 2023
March 2023 Senior Convertible Note	$	—	$	—	$	11,900	$	11,900
Totals	$	—	$	—	$	11,900	$	11,900

¹	There were no transfers between the respective Levels during the period ended March 31, 2023.

As discussed in Note 11, Debt, the Company issued a Senior Secured Convertible Note dated March 21, 2023 with a $11.1 million face value principal (“March 2023 Senior Convertible Note”.) The convertible note is accounted for under the ASC 825-10-15-4 fair value option (“FVO”) election, wherein, the financial instrument is initially measured at its issue date estimated fair value and subsequently remeasured at estimated fair value on a recurring basis at each reporting period date.

The estimated fair value of the financial instruments classified within the Level 3 category was determined using both observable inputs and unobservable inputs. Unrealized gains and losses associated with liabilities within the Level 3 category include changes in fair value attributable to both observable (e.g., changes in market interest rates) and unobservable (e.g., changes in unobservable long- dated volatilities) inputs.

The estimated fair value of the March 2023 Senior Convertible Note as of each of March 21, 2023 and March 31, 2023 were computed using a Monte Carlo simulation of the present value of its cash flows using a synthetic credit rating analysis and a required rate-of-return, using the following assumptions:

Schedule of Fair Value Assumption Used

	March 2023 Senior Convertible Note: March 21, 2023			March 2023 Senior Convertible Note: March 31, 2023
Fair Value	$	11,900		$	11,900
Face value principal payable	$	11,111		$	11,111
Required rate of return		11.00	%		11.00	%
Conversion Price	$	5.00		$	5.00
Value of common stock	$	1.54		$	1.40
Expected term (years)		2.00			1.98
Volatility		75.00	%		75.00	%
Risk free rate		4.09	%		3.99	%
Dividend yield		—	%		—	%

The estimated fair values reported utilized the Company’s common stock price along with certain Level 3 inputs (as discussed in the table above), in the development of Monte Carlo simulation models, discounted cash flow analyses, and /or Black-Scholes valuation models. The estimated fair values are subjective and are affected by changes in inputs to the valuation models and analyses, including the Company’s common stock price, the Company’s dividend yield, the risk-free rates based on U.S. Treasury security yields, and certain other Level-3 inputs including, assumptions regarding the estimated volatility in the value of the Company’s common stock price. Changes in these assumptions can materially affect the estimated fair values.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Debt

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Debt

Note 11 — Debt

The fair value and face value principal outstanding of the March 2023 Senior Convertible Note as of the dates indicated are as follows:

Summary of Outstanding Debt

Contractual

Maturity

Date

Stated

Interest

Rate

Conversion

Price per

Face Value

Principal

Outstanding

Fair Value

March 2023 Senior Convertible Note

March 21, 2025

7.875

5.00

11,111

11,900

Balance as of March 31, 2023

11,111

11,900

The changes in the fair value of debt during the three months ended March 31, 2023 is as follows:

	March 2023 Senior Convertible Note		Other Income (expense)
Fair Value - December 31, 2022	$	—	$	—
Face value principal – issue date		11,111		—
Fair value adjustment – issue date		789		(789	)
Change in fair value		—		—
Fair Value at March 31, 2023	$	11,900		-
Other Income (Expense) - Change in fair value – three months ended March 31, 2023			$	(789	)

March 2023 Senior Secured Convertible Note

Lucid Diagnostics entered into a Securities Purchase Agreement (“SPA”) dated March 13, 2023, with an accredited institutional investor (“Investor”, “Lender”, and /or “Holder”), wherein, Lucid agreed to sell, and the Investor agreed to purchase an aggregate of $11.1 million face value principal of debt. The debt was issued in a registered direct offering under the Lucid’s effective shelf registration statement.

Under the SPA dated March 13, 2023, Lucid issued a Senior Secured Convertible Note dated March 21, 2023, referred to herein as the “March 2023 Senior Convertible Note”, with such note having a $11.1 million face value principal, a 7.875% annual stated interest rate, a contractual conversion price of $5.00 per share of the Company’s common stock (subject to standard adjustments in the event of any stock split, stock dividend, stock combination, recapitalization or other similar transaction), and a contractual maturity date of March 21, 2025. The March 2023 Senior Convertible Note may be converted into shares of common stock of the Company at the Holder’s election.

The March 2023 Senior Convertible Note proceeds were $9.925 million after deducting a $1.186 million lender fee and offering costs. The lender fee and offering costs were recognized as of the March 21, 2023 issue date as a current period expense in other income (expense) in the Company’s unaudited condensed consolidated statement of operations.

During the period from March 21, 2023 to September 20, 2023, Lucid is required to pay interest expense only (on the $11.1 million face value principal), at 7.875% per annum, computed on a 360 day year. The Company paid in cash interest expense of $24 for the three months ended March 31, 2023.

Commencing September 21, 2023, and then on each of the successive first and tenth trading day of each month thereafter through to and including March 14, 2025 (each referred to as an “Installment Date”); and on the March 21, 2025 maturity date, the Company will be required to make a principal repayment of $292 together with accrued interest thereon, with such 38 payments referred to herein as the “Installment Amount”, settled in shares of common stock of the Company, subject to customary equity conditions, including minimum share price and volume thresholds, or at the election of the Company, in cash, in whole or in part.

In addition to the Installment Amount repayments, the Holder may elect to accelerate the conversion of future Installment Amount repayments, and interest thereon, subject to certain restrictions, as defined, utilizing the then current conversion price of the most recent Installment Date conversion price.

Note 11 — Debt - continued

The payment of all amounts due and payable under this senior convertible note is guaranteed by all of Lucid Diagnostics’ subsidiaries; and the obligations under this senior convertible note are secured by all of the assets of Lucid Diagnostics and its subsidiaries.

Lucid is subject to certain customary affirmative and negative covenants regarding the rank of the note, along with the incurrence of further indebtedness, the existence of liens, the repayment of indebtedness and the making of investments, the payment of cash in respect of dividends, distributions or redemptions, the transfer of assets, the maturity of other indebtedness, and transactions with affiliates, among other customary matters.

Lucid is subject to financial covenants requiring: (i) a minimum of $5.0 million of available cash at all times; (ii) the ratio of (a) the outstanding principal amount of the total senior convertible notes outstanding, accrued and unpaid interest thereon and accrued and unpaid late charges to (b) the Company’s average market capitalization over the prior ten trading days, as of the last day of any fiscal quarter commencing with September 30, 2023, to not exceed 30%; and (iii) the Company’s market capitalization to at no time be less than $30 million.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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-Section 50
-Paragraph 1B
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Section 50
-Paragraph 1B
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Asset Purchase Agreement And Management Services Agreement

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2023	Dec. 31, 2022
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	20,000,000	20,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	41,753,603	40,518,792
Common stock, shares outstanding	41,753,603	40,518,792
Series A Preferred Stock [Member]
Preferred stock, shares issued	13,625	0
Preferred stock, shares outstanding	13,625	0

Asset Purchase Agreement and Management Services Agreement

3 Months Ended

Mar. 31, 2023

Asset Purchase Agreement and Management Services Agreement

Note 6 — Asset Purchase Agreement and Management Services Agreement

Asset Purchase Agreement and Management Services Agreement - ResearchDx Inc.

Through its wholly-owned subsidiary, LucidDx Labs Inc. (“LucidDx Labs”), the Company entered into an asset purchase agreement (“APA”) dated February 25, 2022, with ResearchDx, Inc. (“RDx”), an unrelated third-party - “APA-RDx”. Under the APA-RDx, LucidDx Labs Inc. acquired certain assets from RDx which were combined with other property and equipment to establish a Company-owned CLIA certified, CAP accredited commercial clinical laboratory capable of performing the EsoGuard® Esophageal DNA assay, inclusive of DNA extraction, next generation sequencing (“NGS”) and specimen storage. Prior to February 25, 2022, RDx provided such laboratory services at its owned CLIA-certified, CAP-accredited clinical laboratory. In connection with the execution and delivery of the APA-RDx, LucidDx Labs Inc. and RDx entered into a separate management services agreement (“MSA-RDx”), dated and effective February 25, 2022, pursuant to which RDx provided certain testing and related services for the Laboratory.

The total purchase price consideration payable under the APA-RDx is a face value of $3,200 comprised of three contractually specified periodic payments. The APA-RDx is being accounted for as an asset acquisition, with the recognition of an intangible asset of approximately $3,200, which is included in “Intangible assets, net” on the accompanying unaudited condensed consolidated balance sheet, as further discussed in Note 9, Intangible Assets, net.

Termination of Management Services Agreement and Modification of Other Payment Obligations - ResearchDx Inc.

On February 14, 2023, through LucidDx Labs Inc, the Company entered into an agreement (the “MSA Termination Agreement”) with RDx, pursuant to which the parties mutually agreed to terminate the MSA-RDx without cause. The termination was effective as February 10, 2023. Until the termination of the management service agreement with RDx, RDx had continued to provide certain testing and related services for the Laboratory in accordance with the terms of the MSA-RDx.

The MSA Termination Agreement reduces the remaining amounts of the earnout payments and management fees due under the APA-RDx and the MSA-RDx to $713. The payment was satisfied through the issuance of 553,436 shares of the Company’s common stock in February 2023. The Company was not required to make any cash payments in connection with the termination.

Intangible Assets, net

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets, net

Note 9 — Intangible Assets, net

Intangible assets, less accumulated amortization, consisted of the following as of:

	Estimated Useful Life	March 31, 2023			December 31, 2022
Defensive technology	60 months	$	2,105		$	2,105
Laboratory licenses and certifications and laboratory information management software	24 months		3,200		$	3,200
Total Intangible assets			5,305			5,305
Less Accumulated Amortization			(2,365	)		(1,860	)
Intangible Assets, net		$	2,940		$	3,445

The defensive technology intangible asset of $2.1 million (and approximately $0.2 million of accumulated amortization) was recognized by the Company as of the April 1, 2022 effective date of the transfer of CapNostics, LLC (“CapNostics”) to the Company from PAVmed Subsidiary Corp (a wholly-owned subsidiary of PAVmed). The transfer was accounted for as entities under common control. The defensive technology intangible asset was recognized by PAVmed Subsidiary Corp upon its acquisition of CapNostics, an unrelated third-party, for total purchase consideration paid on the October 5, 2021 acquisition date of approximately $2.1 million in cash. The CapNostics transaction was accounted for as an asset acquisition, resulting in the recognition of the defensive technology intangible asset. The defensive technology intangible asset is being amortized on a straight-line basis over an expected useful life 60 months commencing on the acquisition date.

As noted in Note 6, Asset Purchase Agreement and Management Services Agreement, the asset purchase agreement between the Company and ResearchDx Inc. (“APA-RDx”), is being accounted for as an asset acquisition. The intangible assets recognized under the APA-RDx are the laboratory licenses and certifications (inclusive of a CLIA certification, CAP accreditation, and clinical laboratory licenses for five (5) U.S. States transferred to the Company from RDx), and a laboratory information management software perpetual-use royalty-free license granted under the APA-RDx, with such intangible asset having a useful life of twenty-four months commencing on the APA-RDx February 25, 2022 transaction date.

Amortization expense of the intangible assets discussed above was $505 for the period ended March 31, 2023 (there was no such amortization expense for the prior period ended March 31, 2022), and is included in amortization of acquired intangible assets in the accompanying unaudited condensed consolidated statements of operations. As of March 31, 2023, the estimated future amortization expense associated with the Company’s finite-lived intangible assets for each of the five succeeding fiscal years is as follows:

Schedule of Future Amortization Expense


2023 (remainder of year)	$	1,516
2024		688
2025		421
2026		315
Total	$	2,940

Schedule of Fair Value Assumption Used (Details) $ in Thousands	Mar. 31, 2023 USD ($)	Mar. 21, 2023 USD ($)	Mar. 13, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 11,900
Face value principal payable	11,111	$ 11,100
March 2023 Senior Convertible Note [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	11,900	11,900
Face value principal payable	$ 11,111	$ 11,111	$ 11,100
March 2023 Senior Convertible Note [Member] \| Measurement Input Required Rate of Return [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value assumption measurement input	11.00	11.00
March 2023 Senior Convertible Note [Member] \| Measurement Input, Conversion Price [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value assumption measurement input	5.00	5.00
March 2023 Senior Convertible Note [Member] \| Measurement Input, Share Price [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value assumption measurement input	1.40	1.54
March 2023 Senior Convertible Note [Member] \| Measurement Input, Expected Term [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected term years	1 year 11 months 23 days	2 years
March 2023 Senior Convertible Note [Member] \| Measurement Input, Price Volatility [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value assumption measurement input	75.00	75.00
March 2023 Senior Convertible Note [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value assumption measurement input	3.99	4.09
March 2023 Senior Convertible Note [Member] \| Measurement Input, Expected Dividend Rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value assumption measurement input

Schedule of Stock Options Issued and Outstanding Activities (Details) (Paranthetical) - shares	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
2018 Equity Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock option grants	423,300	423,300

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.