Note 11 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Capitalized research and development costs	$ 3,272	$ 2,320
Operating lease liabilities	1,870	859
Accrued vacation pay and stock-based compensation	532	433
Inventories	434	395
Foreign intangible assets	403	369
Net operating loss (state and foreign)	381	245
Acquisition costs	43	44
Allowance for credit losses	45	44
Accrued warranty	25	26
Other	151	62
Total	7,156	4,797
Valuation allowance	(261)	(245)
Deferred tax assets	6,895	4,552
Intangible assets	(4,673)	(1,949)
Right-of-use assets	(1,821)	(762)
Depreciation of property and equipment	(334)	(404)
Deferred tax liabilities	(6,828)	(3,115)
Net deferred tax assets	$ 67	$ 1,437