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DEBT (Details)
Sep. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Debt Instruments    
Restricted money market $ 5,000,000  
Aggregate principal amount outstanding $ 124,000  
Number of letters of credit issued 3  
Veritex Line of Credit    
Debt Instruments    
Repayment of term loan $ 4,355,665  
Funds borrowed under Line of Credit 0  
Letter of credit to support payment of certain insurance obligations    
Debt Instruments    
Letters of credit issued 1,767,000  
Letter of credit to support workers compensation insurance    
Debt Instruments    
Letters of credit issued 583,000  
Letter of credit to support certain performance obligations    
Debt Instruments    
Letters of credit issued 75,000  
Dominion Credit Agreement    
Debt Instruments    
Borrowing, repaying and re-borrowing capacity $ 15,000,000  
Percentage of maximum borrowing capacity on eligible accounts receivable 80.00%  
Percentage of maximum borrowing capacity on deposit with lender 100.00%  
Restricted money market $ 5,000,000  
Commitment fee 0.10%  
Minimum tangible net worth $ 75,000,000  
Dominion Credit Agreement | Minimum    
Debt Instruments    
Interest rate (as a percent) 3.50%  
Dominion Credit Agreement | Maximum    
Debt Instruments    
Interest rate (as a percent) 6.00%  
Notes payable to commercial banks    
Debt Instruments    
Aggregate principal amount outstanding   $ 5,975,000
Interest rate (as a percent)   5.00%