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8. NOTES PAYABLE (Details - Minimum capital lease payments) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Debt Disclosure [Abstract]    
2017 $ 4,764  
2018 2,163  
2019 359  
2020 201  
2021 81  
Thereafter 15  
Total minimum payments 7,583  
Amount representing interest (327)  
Present value of net minimum lease payments 7,256  
Less current portion (4,526) $ (10,038)
Long-term portion $ 2,730 $ 6,385