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Commitments and Contingencies (Details 2) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Mar. 31, 2021
Dec. 31, 2020
Commitments and Contingencies            
Accretion of the lease liability $ 96 $ 42 $ 195 $ 59    
Amortization of right-of-use assets $ 108 $ 142 $ 213 $ 302    
Weighted Average Remaining Lease Term            
Operating leases     6 years 7 months 6 days      
Finance leases     2 years 9 months 18 days      
Weighted Average Discount Rate            
Operating leases 14.00%   14.00%      
Finance leases 5.60%   5.60%      
Operating Leases            
Operating lease right-of-use assets $ 2,679   $ 2,679     $ 2,889
Current portion of operating lease liability 310   310     316
Long term operating lease liability 2,443   2,443     2,578
Total operating lease liabilities 2,753   2,753   $ 2,753 2,894
Finance Leases            
Property and equipment, at cost 2,204   2,204     2,308
Accumulated depreciation (255)   (255)     (249)
Property and equipment, net 1,949   1,949     2,059
Other current liability 426   426     417
Long term other liability 949   949     1,164
Total finance lease liabilities $ 1,375   $ 1,375   $ 1,375 $ 1,581