Note 10 - Provision for Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Taxes Payable	$ 297	$ 387
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0	0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	0
Domestic Tax Jurisdiction [Member]
Increase (Decrease) in Income Taxes Payable	254
Increase (Decrease) in Income Taxes Payable		150
State and Local Jurisdiction [Member]
Increase (Decrease) in Income Taxes Payable	211
Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable		$ 62
Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount	322
Tax Credit Carryforward, Valuation Allowance	322
Tax Credit Carryforward, Amount, Net of Valuation Allowance	$ 0