Note 5 - Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property and equipment	$ 259,548	$ 247,249
Less: accumulated depreciation and amortization	(109,547)	(102,613)
Total	150,001	144,636
Production Equipment and Software [Member]
Property and equipment	120,645	110,971
Building and Building Improvements [Member]
Property and equipment	100,135	100,990
Land [Member]
Property and equipment	16,724	16,883
Transportation Equipment [Member]
Property and equipment	12,948	11,443
Leasehold Improvements [Member]
Property and equipment	4,755	3,321
Furniture and Fixtures [Member]
Property and equipment	$ 4,341	$ 3,641

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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