Note 16 - Income Taxes - Schedule of Components of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Property and equipment	$ 668	$ 735
Deferred revenue	647	2,065
Allowance for doubtful accounts	3,133	2,670
Intangible assets	(1,543)	(2,554)
Non-deductible expenses	8,694	8,350
Warranty and other reserves	1,159	729
Other	610	114
Loss carryforwards	38,353	71,362
Valuation allowance	(51,437)	(82,587)
Total deferred tax assets	284	884
Deferred tax liabilities:
Deferred revenue	46	811
Total deferred tax liabilities	$ 46	$ 811