Note 8 - Balance Sheet Details - Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Property and equipment, gross	$ 438,934	$ 424,448
Accumulated depreciation	(149,496)	(145,519)
Total	289,438	278,929
Land and Land Improvements [Member]
Property and equipment, gross	16,777	15,975
Building and Building Improvements [Member]
Property and equipment, gross	169,869	163,161
Machinery and Equipment [Member]
Property and equipment, gross	106,101	103,726
Dies and Tools [Member]
Property and equipment, gross	29,158	28,198
Vehicles [Member]
Property and equipment, gross	2,863	2,070
Office Equipment [Member]
Property and equipment, gross	84,065	82,638
Leasehold Improvements [Member]
Property and equipment, gross	2,833	2,137
Construction in Progress [Member]
Property and equipment, gross	$ 27,268	$ 26,543

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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