Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Capitalized research and development costs	$ 1,260	$ 0
Operating lease liabilities	1,125	1,407
Inventories	602	387
Accrued vacation pay and stock-based compensation	465	354
Net operating loss (state and foreign)	285	205
Allowance for doubtful accounts	43	45
Accrued warranty	54	31
Acquisition costs	46	9
Tax credit carryforwards	89	17
Other	0	49
Total	3,969	2,504
Valuation allowance	(227)	(64)
Deferred tax assets	3,742	2,440
Deferred tax liabilities:
Net intangible assets	(1,961)	(2,381)
Right-of-use assets	(996)	(1,245)
Depreciation of property and equipment	(385)	(193)
Other	(120)	0
Deferred tax liabilities	(3,462)	(3,819)
Net deferred tax assets (liabilities)	$ 280
Net deferred tax assets (liabilities)		$ (1,379)