Note 3 - Property and Equipment - Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property and equipment, gross	$ 70,218	$ 59,800
Less: accumulated depreciation and amortization	(29,420)	(24,119)
Total	40,798	35,681
Computer Equipment [Member]
Property and equipment, gross	10,880	10,536
Software and Software Development Costs [Member]
Property and equipment, gross	4,690	4,112
Furniture and Fixtures [Member]
Property and equipment, gross	2,395	2,299
Leasehold Improvements [Member]
Property and equipment, gross	6,095	5,474
Laboratory and Test Equipment [Member]
Property and equipment, gross	4,933	2,389
Test Equipment [Member]
Property and equipment, gross	22,980	14,697
Construction in Progress [Member]
Property and equipment, gross	$ 18,245	$ 20,293

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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