Note 6 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Sep. 30, 2022	Sep. 30, 2021
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%			21.00%	21.00%
Change in Control Pursuant to Issuance of Common Stock, Shares (in shares)			4,199,998
Deferred Income Tax Expense (Benefit), Total		$ (546)			$ 0	$ 402
Income Tax Provision, Before Adjustment					$ 900
Income Tax Provision, After Adjustment				$ 0