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NOTES PAYABLE AND CAPITAL LEASE OBLIGATIONS (Details) - USD ($)
Mar. 31, 2018
Dec. 31, 2017
Notes and Loans Payable [Abstract]    
Revolving credit note payable to PNC Bank N.A. ("PNC") $ 17,944,000 $ 16,455,000
Term loans, PNC 3,102,000 3,471,000
Capital lease obligations 2,763,000 3,073,000
Related party note payable, net of debt discount 3,158,000 1,912,000
Convertible notes payable - third parties, net of debt discount 2,063,000 1,930,000
Subtotal 29,030,000 26,841,000
Less: Current portion of notes and capital lease obligations (25,881,000) (23,393,000)
Notes payable and capital lease obligations, net of current portion $ 3,149,000 $ 3,448,000