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7. Debt (Details Narrative) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Line of credit balance $ 5,984 $ 0
Revolving Credit Facility [Member]    
Revolving credit facility maximum borrowing capacity $ 10,000  
Credit facility interest rate LIBOR plus 2.5%  
Credit facility expiration date May 07, 2021  
Line of credit balance $ 5,984  
Unamortized deferred financing costs 66  
Line of credit available $ 3,950