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7. Debt (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
May 08, 2018
Line of credit balance $ 2,751 $ 2,745  
Revolving Credit Facility [Member]      
Line of credit balance 2,751    
Unamortized financing costs 26    
Line of credit available $ 6,223    
Credit line effective interest rate 3.66%    
Credit line expiration date May 07, 2021    
Revolving Credit Facility [Member] | Revolving Loan [Member]      
Revolving credit facility maximum borrowing capacity     $ 9,000
Revolving Credit Facility [Member] | Incremental Facility [Member]      
Revolving credit facility maximum borrowing capacity     $ 5,000