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v3.20.1

Property, Plant and Equipment, Net (Details) - USD ($) $ / shares in Units, $ in Thousands | Jan. 01, 2020 | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Property, plant and equipment [Abstract] |  |  |
Property, plant and equipment, net |  | $ 97,490 | $ 97,403
Service Life |  |  |
Property, plant and equipment [Abstract] |  |  |
Decrease in manufacturing costs as a result of lower depreciation | $ 300 |  |
Decrease in net loss per share, basic and diluted, as a result of lower depreciation | $ 0.01 |  |
Machinery and equipment |  |  |
Property, plant and equipment [Abstract] |  |  |
Property, plant and equipment, gross |  | 44,797 | 45,742
Less: accumulated depreciation and amortization |  | (36,740) | (37,115)
Building |  |  |
Property, plant and equipment [Abstract] |  |  |
Property, plant and equipment, gross |  | 38,171 | 38,837
Less: accumulated depreciation and amortization |  | (12,846) | (12,736)
Leasehold improvements |  |  |
Property, plant and equipment [Abstract] |  |  |
Property, plant and equipment, gross |  | 4,849 | 4,877
Less: accumulated depreciation and amortization |  | (4,041) | (4,035)
Construction in progress |  |  |
Property, plant and equipment [Abstract] |  |  |
Property, plant and equipment, gross |  | 63,300 | 61,833
Construction in progress Dingxin and Kazuo locations |  |  |
Property, plant and equipment [Abstract] |  |  |
Property, plant and equipment, gross |  | 50,200 | 48,800
Construction in progress manufacturing equipment purchases |  |  |
Property, plant and equipment [Abstract] |  |  |
Property, plant and equipment, gross |  | 3,600 | 3,400
Construction in progress other consolidated subsidiaries |  |  |
Property, plant and equipment [Abstract] |  |  |
Property, plant and equipment, gross |  | $ 9,500 | $ 9,600

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