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Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Property, plant and equipment
Property, plant and equipment, net	$ 147,286		$ 142,415
Depreciation and amortization	1,983	$ 1,596
Machinery and equipment
Property, plant and equipment
Property, plant and equipment, gross	59,617		59,284
Less: accumulated depreciation and amortization	(40,848)		(40,292)
Building
Property, plant and equipment
Property, plant and equipment, gross	109,071		108,782
Less: accumulated depreciation and amortization	(19,560)		(18,710)
Leasehold improvements
Property, plant and equipment
Property, plant and equipment, gross	7,060		7,039
Less: accumulated depreciation and amortization	(5,521)		(5,352)
Construction in progress
Property, plant and equipment
Property, plant and equipment, gross	37,467		31,664
Construction in progress Dingxin and Kazuo locations
Property, plant and equipment
Property, plant and equipment, gross	27,200		22,700
Construction in progress manufacturing equipment purchases
Property, plant and equipment
Property, plant and equipment, gross	4,300		3,000
Construction in progress other consolidated subsidiaries
Property, plant and equipment
Property, plant and equipment, gross	$ 6,100		$ 6,000

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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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