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8. Intangible Assets (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization expense $ 16 $ 13 $ 46 $ 27