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Property and Equipment, net (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Property and equipment $ 6,521 $ 5,744
Less accumulated depreciation (4,319) (3,347)
Property and equipment, net 2,202 2,397
Depreciation expense 972 1,155
Furniture and fixtures    
Property, Plant and Equipment [Line Items]    
Property and equipment $ 1,188 1,117
Estimated Useful Life (years) 7 years  
Office equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment $ 1,094 546
Estimated Useful Life (years) 3 years  
Equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment $ 3,095 2,952
Estimated Useful Life (years) 7 years  
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment $ 1,144 $ 1,129
Estimated Useful Life (years) 2 years