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Related Party Transactions - Narrative (Details) - USD ($)
1 Months Ended 9 Months Ended
May 31, 2016
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Sep. 30, 2016
Related Party Transaction [Line Items]          
Grants in period (in shares)   367,265      
Immediate Family Member of Management or Principal Owner          
Related Party Transaction [Line Items]          
Revenue from related parties   $ 600,000 $ 600,000    
Accounts receivable   100,000   $ 200,000  
Grants in period (in shares) 20,580        
Vesting period 4 years        
Cash reimbursement per day for services         $ 4,500
Purchases from related party   $ 47,000 $ 91,000