Note 14 - Income Taxes - Significant Portions of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Net operating loss carryforwards	$ 23,941	$ 19,198
Inventory and accounts receivable reserves	1,826	2,104
Operating lease obligations	8,058	1,801
Accrued liabilities	786	927
Other	4,371	1,209
Valuation allowance	(20,129)	(19,817)
Deferred tax assets after valuation allowance	18,853	5,422
Deferred tax liabilities
Intangible assets	(9,426)	(3,274)
Property, plant and equipment	(9,588)	(2,050)
Total deferred tax liabilities	(19,014)	(5,324)
Net deferred tax (liability)	$ (161)
Net deferred tax asset		$ 98