Note 7 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Federal tax benefit at statutory rate	$ 4,570	$ 6,251
Federal tax benefit at statutory rate, percentage	21.00%	21.00%
State tax benefit net of federal	$ 701	$ 118
State tax benefit net of federal, percentage	3.20%	0.40%
Foreign rate differential	$ 17	$ 59
Foreign rate differential, percentage	0.10%	0.20%
Change in deferred tax rates	$ 34	$ 0
Change in deferred tax rates, percentage	0.20%	0.00%
Stock warrant costs	$ 1,286	$ (219)
Stock warrant costs, percentage	5.90%	(0.80%)
Other permanent differences	$ (60)	$ (73)
Other permanent differences, percentage	(0.30%)	(0.20%)
Permanent provision to return items	$ (134)	$ 662
Permanent provision to return items, percentage	(0.60%)	2.30%
Stock compensation change	$ (85)	$ (82)
Stock compensation change, percentage	(0.40%)	(0.30%)
Uncertain tax provision	$ 0	$ (103)
Uncertain tax provision, percentage	0.00%	(0.40%)
Increase in valuation allowance	$ (6,329)	$ (6,613)
Increase in valuation allowance, percentage	(29.10%)	(22.20%)
Total tax (expense) benefit	$ 0	$ 0
Total tax (expense) benefit, percentage	0.00%	0.00%