Note 4 - Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Gross property and equipment	$ 39,990	$ 35,121
Less accumulated depreciation	(22,931)	(20,085)
Property and equipment, net	17,059	15,036
Computers and Equipment [Member]
Gross property and equipment	5,667	5,046
Machinery and Equipment [Member]
Gross property and equipment	18,439	17,266
Building and Leasehold Improvements [Member]
Gross property and equipment	$ 15,884	$ 12,809

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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