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The cash inflow from the additional capital contribution to the entity.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of options outstanding, including both vested and non-vested options.

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Other than shares newly issued, the number of additional shares issued (for example, a stock split) or canceled (for example, to correct a share issuance), during the period under the plan.

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Number of shares purchased for issuance under share-based payment arrangement.

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Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan.

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Stock-Based Compensation (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Jan. 07, 2022	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Issuance of common stock			$ 55,016
Employee Stock Purchase Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Common stock capital shares reserved for future issuance		3,010,690
Purchase from proceeds of common stock		194,240	203,480
Issuance of common stock		$ 217	$ 304
Employee Stock Purchase Plan [Member] \| Maximum [Member] \| Board of Directors [Member]
Defined Benefit Plan Disclosure [Line Items]
Share based compensation arrangement by share based payment award, other share increase decrease		2,192,531
Lucid Diagnostics Employee Stock Purchase Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Common stock capital shares reserved for future issuance		500,000
2014 Equity Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Common stock capital shares reserved for future issuance		16,352,807
Share-based payment award, number of shares available for grant		2,776,706
Number of restricted stock awards granted outstanding		600,854
Number of stock options outstanding		600,854
2018 Stock Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Common stock capital shares reserved for future issuance		5,644,000
Share-based payment award, number of shares available for grant		733,541
Stock issued during period, shares, employee stock ownership plan		473,300
2018 Equity Plan [Member] \| Lucid Diagnostics Inc [Member] \| Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period	320,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$ 1,400
2014 Equity Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average fair value of stock options		$ 1.22	$ 2.79
2018 Long Term Incentive Equity Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of stock options outstanding		2,864,427		1,419,242
Weighted average fair value of stock options		$ 2.95