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2. LEASES (Details - Minimum lease payments) - USD ($)
$ in Thousands
Dec. 31, 2019
Jan. 02, 2019
Leases [Abstract]    
Future minimum lease payment 2020 $ 1,383  
Future minimum lease payment 2021 1,391  
Future minimum lease payment 2022 1,407  
Future minimum lease payment 2023 589  
Future minimum lease payment thereafter 0  
Total lease payments 4,770  
Less: interest (409)  
Present value of lease liabilities $ 4,361 $ 5,707