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v3.19.3

Property and Equipment, Net - Schedule of Property, and Equipment (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Property and equipment, gross | $ 60,286 | $ 51,590
Less: accumulated depreciation | (8,637) | (6,042)
Total property and equipment, net | 51,649 | 45,548
Operational equipment |  |
Property and equipment, gross | $ 21,461 | 15,926
Operational equipment | Minimum |  |
Useful Life (Years) | 3 years |
Operational equipment | Maximum |  |
Useful Life (Years) | 10 years |
Lab equipment |  |
Useful Life (Years) | 5 years |
Property and equipment, gross | $ 580 | 698
Computer equipment |  |
Useful Life (Years) | 3 years |
Property and equipment, gross | $ 221 | 201
Office furniture and equipment |  |
Useful Life (Years) | 3 years |
Property and equipment, gross | $ 353 | 336
Land |  |
Property and equipment, gross | $ 1,047 | 1,047
Building |  |
Useful Life (Years) | 39 years |
Property and equipment, gross | $ 24,867 | 24,820
Asset retirement cost |  |
Useful Life (Years) | 20 years |
Property and equipment, gross | $ 670 | 670
Equipment under construction |  |
Property and equipment, gross | $ 11,087 | $ 7,892

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