Note 10 - Provision for Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Taxes Payable	$ 387	$ 387
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0	16
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	0
Foreign Tax Authority [Member]
Tax Credit Carryforward, Amount	521
Domestic Tax Authority [Member]
Increase (Decrease) in Income Taxes Payable	150
Increase (Decrease) in Income Taxes Payable		158
State and Local Jurisdiction [Member]
Increase (Decrease) in Income Taxes Payable	62
Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable		$ 87
Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount	319
Tax Credit Carryforward, Valuation Allowance	319
Tax Credit Carryforward, Amount, Net of Valuation Allowance	$ 0