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Long-Term Debt and Credit Facilities (Details Narrative) - USD ($)
6 Months Ended
Jun. 30, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Total liquidity $ 11,900,000  
Cash and cash equivalents 8,471,914 $ 10,796,072
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Line of credit facility, maximum borrowing capacity  
Line of credit facility, current borrowing capacity 3,400,000  
Revolving Credit Facility [Member] | Primary Lender [Member]    
Debt Instrument [Line Items]    
Line of credit facility, maximum borrowing capacity $ 5,000,000  
Revolving Credit Facility [Member] | Prime Rate [Member] | Primary Lender [Member]    
Debt Instrument [Line Items]    
Line of credit maturity date Jun. 30, 2020  
Line of credit interest rate 4.50%