Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.20.1
Commitments and Contingencies - Additional Information (Details) - USD ($)
3 Months Ended
Jan. 01, 2019
Mar. 31, 2020
Mar. 31, 2019
Operating Lease, Weighted Average Discount Rate, Percent   9.90%  
Operating Lease, Cost   $ 50,000 $ 50,000
Operating Lease, Payments   77,000 75,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability   $ 0 $ 538,000
Operating Lease Expiration Year   2022  
ASU 2016-02      
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability $ 538,000