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2. LEASES (Details - Minimum lease payments) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Future minimum lease payment 2021 $ 1,399  
Future minimum lease payment 2022 1,415  
Future minimum lease payment 2023 597  
Future minimum lease payment 2024 8  
Future minimum lease payment thereafter 4  
Total minimum lease payments 3,423  
Less: interest (211)  
Present value of lease liabilities $ 3,212 $ 4,361