Note 9 - Income Taxes - Reconciliation of Effective Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Tax computed at statutory rate	$ (225)	$ (56)
Tax computed at statutory rate, percent	21.00%	21.00%
State and local income tax, net of federal income tax effect	$ (161)	$ (159)
State and local income tax, net of federal income tax effect, percent	15.00%	59.60%
Change in valuation allowance	$ (2,351)	$ 40
Change in valuation allowance, percent	219.60%	(15.00%)
Non-taxable entity activity	$ (3)
Non-taxable Entity Activity, percent	0.30%
Other	$ 1
Other, percent	(0.10%)
Changes in unrecognized tax benefits	$ 6
Changes in unrecognized tax benefits, percent	(0.60%)
Other adjustments	$ (4)
Other Adjustments, percent	0.40%
Effective tax benefit and rate	$ (2,737)	$ (18)
Effective tax benefit and rate, percent	255.60%	6.70%
Income tax expense computed at U.S. federal statutory rates	$ (225)	$ (56)
Income tax expense computed at U.S. federal statutory rates, percent	21.00%	21.00%
Excluded entities		$ 157
Excluded entities, percent		(58.90%)