Note 8 - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Inventory reserve	$ 20	$ 17
Allowance for doubtful accounts	12	12
Lease liability	58	72
Stock-based compensation	23	9
Depreciation and amortization	16	14
Federal tax loss carryforwards	0	72
Other reserves and accruals	119	35
Total deferred tax assets	248	231
Right-of-use asset	58	72
Total deferred tax liabilities	58	72
Net deferred tax assets before valuation allowance	190	159
Valuation allowance	0	0
Net deferred tax assets	$ 190	$ 159