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5. Commitments and Contingencies (Details 2) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]    
Accretion of the lease liability $ 258 $ 125
Amortization of right-of-use assets $ 308 587
Weighted average remaining lease term operating leases 6 years 10 months 24 days  
Weighted average remaining lease term finance leases 3 years 3 months 18 days  
Weighted average discount rate operating leases 14.10%  
Weighted average discount rate finance leases 5.40%  
Operating leases    
Operating lease right-of-use assets $ 2,889 557
Current portion of operating lease liability 316 377
Long term operating lease liability 2,578 200
Total operating lease liabilities 2,894 577
Finance leases    
Property and equipment, at cost 2,308 0
Accumulated depreciation (249) 0
Property and equipment, net 2,059 0
Other current liability 417 0
Long term other liability 1,164 0
Total finance lease liabilities $ 1,581 $ 0