Note 11 - Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Federal statutory income tax expense, amount	$ 676	$ 1,382	$ 1,016
Federal statutory income tax expense, percent	21.00%
State and local income taxes, net of federal income tax effect, amount	$ 7	738	(65)
State and local income taxes, net of federal income tax effect, percent	0.00%
Change in valuation allowance, amount	$ 965	2,882	5,043
Change in valuation allowance, percent	30.00%
Stock compensation expense, amount	$ 2,093	286	(1,747)
Stock compensation expense, percent	65.00%
Meals expense, amount	$ 100
Meals expense, percent	3.00%
Section 162(m) limitation, amount	$ 64	148	424
Section 162(m) limitation, percent	2.00%
U.S. branch income, amount	$ 70
U.S. branch income, percent	2.00%
Sales-type lease interest income, amount	$ (83)
Sales-type lease interest income, percent	(3.00%)
Other nontaxable or nondeductible items, amount	$ 14
Other nontaxable or nondeductible items, percent	0.00%
Foreign tax credits, amount	$ (1,995)
Foreign tax credits, percent	(62.00%)
Other tax credits, amount	$ (10)
Other tax credits, percent	0.00%
Foreign-derived intangible income deduction	$ (403)	(2,052)	(1,612)
Foreign-derived intangible income deduction	(13.00%)
Worldwide changes in unrecognized tax benefits, amount	$ 575
Worldwide changes in unrecognized tax benefits, percent	18.00%
Other adjustment, amount	$ 12	232	99
Other adjustment, percent	0.00%
Tax rate differential, amount		1,707	1,859
Other foreign jurisdictions, amount		(6)	(39)
Deferred tax asset adjustment, amount	$ (88)
Deferred tax asset adjustment, percent	(3.00%)
Transaction costs, amount	$ (198)
Transaction costs, percent	(6.00%)
Global effective income tax expense, amount	$ 3,841	2,522	1,764
Global effective income tax expense, percent	120.00%
Tax credits, amount		$ (2,795)	$ (3,214)
Foreign Tax Jurisdiction [Member] | National Taxation Bureau of Taipei [Member]
Foreign permanent differences, amount	$ 61
Foreign permanent differences, percent	2.00%
Prior year true up, amount	$ (35)
Prior year true up, percent	(1.00%)
Foreign withholding tax, amount	$ 567
Foreign withholding tax, percent	18.00%
Other adjustment, amount	$ (4)
Other adjustment, percent	0.00%
Foreign Tax Jurisdiction [Member] | State Administration of Taxation, China [Member]
Foreign permanent differences, amount	$ (133)
Foreign permanent differences, percent	(4.00%)
Foreign withholding tax, amount	$ 1,306
Foreign withholding tax, percent	41.00%
Other adjustment, amount	$ 23
Other adjustment, percent	1.00%
Foreign Tax Jurisdiction [Member] | Canada Revenue Agency [Member]
Foreign permanent differences, amount	$ 247
Foreign permanent differences, percent	8.00%
Other adjustment, amount	$ (1)
Other adjustment, percent	0.00%
Tax rate differential, amount	$ (64)
Tax rate differential, percent	(2.00%)
Foreign Tax Jurisdiction [Member] | Inland Revenue Board of Malaysia [Member]
Foreign withholding tax, amount	$ 55
Foreign withholding tax, percent	2.00%
Foreign Tax Jurisdiction [Member] | Other Non-US [Member]
Other adjustment, percent	1.00%
Other foreign jurisdictions, amount	$ 20