Quarterly report pursuant to Section 13 or 15(d)

Leases - Additional Information (Details)

v3.19.3
Leases - Additional Information (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
Lease
Jun. 30, 2018
USD ($)
Jan. 01, 2019
USD ($)
Operating Leased Assets [Line Items]          
Operating lease right-of-use-assets $ 3,002   $ 3,002    
Operating lease, liability $ 3,082   $ 3,082    
Number of leases | Lease     2    
Operating lease, discount rate 7.00%   7.00%    
Operating lease, weighted average remaining lease term 8 years   8 years    
operating lease expense $ 100   $ 300    
Operating lease , cash payment 100   200    
Rent expense   $ 100   $ 200  
Operating lease right-of-use-assets amortization $ 100   $ 162    
ASU 2016-02 [Member]          
Operating Leased Assets [Line Items]          
Operating lease right-of-use-assets         $ 3,200
Operating lease, liability         $ 3,200
Office Building [Member]          
Operating Leased Assets [Line Items]          
Lease expiration period     2027    
Manufacturing Facility [Member]          
Operating Leased Assets [Line Items]          
Lease expiration period     2021