6. Leases (Details - Balance sheet lease items) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Right of use asset	$ 400	$ 511
Lease liability, current	116	107
Lease liability, non-current	295	411
Total lease liability	$ 411	$ 518
Weighted average remaining lease term	3 years 8 months 16 days	4 years 5 months 5 days
Weighted average discount rate	4.70%	4.64%