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NOTES PAYABLE (Details) - USD ($)
$ in Thousands
1 Months Ended
Apr. 30, 2020
Dec. 31, 2019
Jun. 30, 2020
NOTES PAYABLE (Details) [Line Items]      
Long-term Line of Credit   $ 0 $ 0
Line of Credit Facility, Remaining Borrowing Capacity   10,000 $ 9,500
Third Restated Credit Agreement [Member] | Medium-term Notes [Member]      
NOTES PAYABLE (Details) [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity   20,000  
Pinnacle Bank [Member]      
NOTES PAYABLE (Details) [Line Items]      
Proceeds from Bank Debt $ 8,856    
Debt Instrument, Interest Rate, Stated Percentage 1.00%   1.00%
Debt Instrument, Payment Terms the Company will be required to make principal and interest payments in monthly installments beginning seven months from April 2020    
Debt Instrument, Term 2 years    
Revolving Credit Facility [Member] | Third Restated Credit Agreement [Member]      
NOTES PAYABLE (Details) [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity   10,000  
Debt Instrument Covenant, Period One [Member] | Revolving Credit Facility [Member] | Third Restated Credit Agreement [Member]      
NOTES PAYABLE (Details) [Line Items]      
Debt Instrument, Covenant, EBITDA   3,750  
Debt Instrument Covenant, Period Two [Member] | Revolving Credit Facility [Member] | Third Restated Credit Agreement [Member]      
NOTES PAYABLE (Details) [Line Items]      
Debt Instrument, Covenant, EBITDA   4,850  
Debt Instrument Covenant, Period Three [Member] | Revolving Credit Facility [Member] | Third Restated Credit Agreement [Member]      
NOTES PAYABLE (Details) [Line Items]      
Debt Instrument, Covenant, EBITDA   $ 5,950