Note 17 - Income Taxes - Significant Components of Company's Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Lease liability	$ 5,147	$ 5,206
Inventory reserve	2,004	1,187
Net operating loss carry forwards	4,775	1,812
Stock-based compensation expense	1,742	1,901
Tax credits	2,485	0
Foreign currency exchange	229	346
Accrued expenses and other	156	1,076
Gross deferred tax assets	16,538	11,528
Less: valuation allowance	(857)	0
Deferred tax assets	15,681	11,528
Acquisition-related intangibles	(13,972)	(2,023)
Depreciation	(8,493)	(8,665)
Right of use asset	(5,111)	(5,171)
Deferred tax liabilities	(27,576)	$ (15,859)
Net deferred tax liabilities	$ (11,895)