Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Operating Leases (Details)

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Commitments and Contingencies - Operating Leases (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 31, 2018
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Commitments and Contingencies          
Lease Expiration Date Oct. 31, 2020        
Operating Leases, Rent Expense   $ 56,000 $ 87,000 $ 168,000 $ 288,000
Annual minimum lease payments for operating lease          
Year ending December 31, 2021   41,000   41,000  
Year ending December 31, 2022   153,000   153,000  
Year ending December 31, 2023   173,000   173,000  
Year ending December 31, 2024   $ 15,000   $ 15,000