Note 10 - Provision for Taxes - Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income tax at statutory rate	$ 3,733	$ 2,623
State tax expense, net of federal effect	487	333
Federal true-ups	121	(53)
Federal tax credits	(158)	(405)
Sale of Harvard Sports	582	0
Captive insurance earnings	0	(112)
Incentive stock options	(8)	33
Other	33	245
Income Tax Expense (Benefit)	$ 4,790	$ 2,664