Note 13 - Income Tax - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Inventory	$ 1,280	$ 1,144
Operating loss and credit carryforwards	18,046	19,220
Accrued expenses	835	555
Deferred interest expense	1,191	1,476
Stock compensation	580	1,079
Lease liability	1,693	1,823
Other assets	386	458
Total gross deferred assets	24,011	25,755
Less: valuation allowance	(14,700)	(16,682)
Deferred tax assets	9,311	9,073
Indefinite-lived intangible assets	1,882	1,822
Definite-lived intangible assets	6,277	7,493
Right-of-use asset	1,277	1,388
Other liabilities	1,228	14
Total deferred tax liabilities	10,664	10,717
Deferred income tax liability, net	(1,353)	(1,644)
Deferred income tax assets (included in other long-term assets)	205	255
Deferred income tax liabilities	$ (1,558)	$ (1,899)