Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Work in process $ 14,367 $ 13,927
Finished goods 1,569 0
Total inventories $ 15,936 $ 13,927