Note 11 - Income Taxes - Schedule of Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
U.S. federal income taxes at the statutory rate	$ (847)	$ (915)
State taxes, net of federal effects	(57)	(58)
U.S. Federal and state NOL carryforward adjustment for expired NOLs	62	613
Stock compensation plan adjustments	67	385
Change in valuation allowance	1,026	(112)
State taxes, change in apportionment rate	(297)	43
Other	56	71
Income tax expense	$ 10	$ 27