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Schedule of Stock Options Issued and Outstanding Activities (Details) - $ / shares		6 Months Ended	9 Months Ended
		Jun. 30, 2021	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Number of Stock Options, Outstanding Balance Beginning		1,399,243	1,399,243
Weighted Average Exercise Price, Outstanding Balance Beginning		$ 0.61	$ 0.61
Remaining Contractual Term (Years), Beginning Outstanding			8 years
Number of Stock Options, Granted	[1]
Weighted Average Exercise Price, Granted	[1]
Number of Stock Options, Exercised
Weighted Average Exercise Price, Exercised
Number of Stock Options, Forfeited
Weighted Average Exercise Price, Forfeited
Number of Stock Options, Outstanding Balance Ending			1,399,243
Weighted Average Exercise Price, Outstanding Balance Ending			$ 0.61
Remaining Contractual Term (Years), Ending Outstanding			7 years 6 months
Number of Stock Options Vested and Exercisable			1,120,526
Weighted Average Exercise Price, Vested and Exercisable		$ 0.57
Remaining Contractual Term (Years), Vested and Exercisable		7 years 4 months 24 days
[1] Stock options granted under the Lucid Diagnostics Inc. 2018 Equity Plan generally vest ratably over twelve quarters, with the vesting commencing with the grant date quarter, and have a ten-year contractual term from date-of-grant.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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