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7. Leases (Details 1) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Leases [Abstract]    
2020 $ 420 $ 823
2021 822 793
2022 525 501
2023 416 393
2024 328 304
Thereafter 1,325 1,320
Total 3,836 4,134
Less: imputed interest (433) (487)
Operating lease liability $ 3,403 $ 3,647