Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment - Narrative (Details)

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Property and Equipment - Narrative (Details)
ft² in Thousands, $ in Thousands
1 Months Ended 3 Months Ended
May 31, 2020
USD ($)
Mar. 31, 2021
USD ($)
ft²
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Aug. 28, 2020
ft²
Property, Plant and Equipment [Line Items]          
Depreciation   $ 772 $ 307    
Heights Union          
Property, Plant and Equipment [Line Items]          
Area of lease property | ft²   75,000     75,000
Deposit in escrow account $ 6,289        
Disbursement from the escrow account   $ 759      
Balance remaining in the escrow account   $ 83   $ 842