Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details)

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Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross $ 6,373 $ 6,300
Less: accumulated depreciation 1,334 1,248
Property, plant and equipment, net 5,039 5,052
Buildings and Improvements    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 196 196
Furniture, Office and Computer Equipment    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 934 934
Manufacturing and Laboratory Equipment    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross 717 717
Construction in Progress    
Property Plant And Equipment [Line Items]    
Property, plant and equipment, gross $ 4,526 $ 4,453