Note 5 - Fair Value of Assets and Liabilities - Level 3 Fair Value (Details)	3 Months Ended	5 Months Ended
Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Less: Unrealized gains reported in other income	$ 252,000
W-1 Warrant and Class B Common Stock [Member]
Balance	576,000	$ 1,476,000
Less: Unrealized gains reported in other income		(900,000)
Balance	$ 828,000	$ 576,000
W-1 Warrant [Member] \| Measurement Input, Share Price [Member]
W-1 Warrant, measurement input	4.35
W-1 Warrant [Member] \| Measurement Input, Exercise Price [Member]
W-1 Warrant, measurement input	8.00
W-1 Warrant [Member] \| Measurement Input, Price Volatility [Member]
W-1 Warrant, measurement input	0.4030
W-1 Warrant [Member] \| Measurement Input, Expected Dividend Rate [Member]
W-1 Warrant, measurement input	0.0000
W-1 Warrant [Member] \| Measurement Input, Bond Equivalent Yield [Member]
W-1 Warrant, measurement input	0.0360
W-1 Warrant [Member] \| Measurement Input, Expected Term [Member]
W-1 Warrant, measurement input	4.37
W-1 Warrant [Member] \| Measurement Input, Discount for Lack of Marketability [Member]
W-1 Warrant, measurement input	0.2300

Value of input used to measure derivative liability.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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-Section 50
-Paragraph 2
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
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