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7. Debt (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Line of credit balance $ 2,774 $ 2,768  
Revolving Credit Facility [Member]      
Line of credit expiration date Jun. 30, 2025    
Line of credit balance $ 2,774    
Unamortized financing costs 3    
Line of credit available $ 2,223    
Credit line effective interest rate 2.15%    
Revolving Credit Facility [Member] | Revolving Loan [Member]      
Revolving credit facility maximum borrowing capacity     $ 5,000
Revolving Credit Facility [Member] | Incremental Facility [Member]      
Revolving credit facility maximum borrowing capacity     $ 5,000