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Lease Commitments - Additional Information (Details)
 1 Months Ended 3 Months Ended
Dec. 31, 2019
USD ($)
ft²
Option
Mar. 31, 2020
USD ($)
ft²
Option
Mar. 31, 2019
USD ($)
Lessee Lease Description [Line Items]      
Cash payments for operating lease costs   $ 300,000 $ 0
Future minimum lease payment obligations   904,000  
Prepaid Lease Payments      
Lessee Lease Description [Line Items]      
Cash payments for operating lease costs   $ 200,000  
Buffalo Grove, Illinois      
Lessee Lease Description [Line Items]      
Operating lease, term of contract   65 months  
Operating lease rentable square feet | ft²   10,043  
Operating lease number of option to extend | Option   1  
Operating lease, option to extend description   The lease contains an option to extend the term for one additional five-year period  
Lessee, operating lease, existence of option to terminate   true  
Operating lease, renewal term   5 years  
Operating lease, monthly rent increasing in every 12 month, percentage   3.00%  
Operating leases, rent expense   $ 83,000 $ 0
Florham Park, New Jersey      
Lessee Lease Description [Line Items]      
Operating lease, term of contract 62 months    
Operating lease rentable square feet | ft² 9,420    
Operating lease number of option to extend | Option 1    
Operating lease, option to extend description   The lease contains an option to extend the term for one additional five-year period  
Lessee, operating lease, existence of option to terminate   true  
Operating lease, renewal term 5 years    
Future minimum lease payment obligations $ 1,700,000