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7. Leases (Details 1)
$ in Thousands
3 Months Ended
Mar. 31, 2019
USD ($)
Leases [Abstract]  
Accretion of the lease liability $ 40
Amortization of right-of-use assets $ 141
Weighted average remaining lease term operating leases 2 years
Weighted average discount rate operating leases 14.70%