Note 4 - Related Party Transactions - Schedule of Related Party Transactions (Details) - Revolving Credit Facility [Member] - Boyalife Asset Holding II [Member] - USD ($)	6 Months Ended	12 Months Ended
Jun. 30, 2023	Dec. 31, 2022	Jan. 31, 2023
Debt Instrument, Maturity Date	Dec. 31, 2023	Dec. 31, 2023
Stated interest rate	22.00%	22.00%
Conversion price (in dollars per share)	$ 2.65	$ 6.30	$ 6.30
Face value	$ 7,278,000	$ 7,000,000
Debt discount	(521,000)	(1,223,000)	$ (2,350,000)
Carrying value	$ 6,757,000	$ 5,777,000

The price per share of the conversion feature embedded in the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Amount, after accumulated amortization, of debt discount.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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