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Notes Payable, Related Party Notes Payable and Finance Lease Obligations (Details) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Notes and Loans Payable [Abstract]    
Term loan, PNC $ 1,202,000 $ 1,572,000
Finance lease obligations 1,503,000 1,786,000
Convertible notes payable-third parties, net of debt discount 2,892,000 2,830,000
Subtotal 24,641,000 25,066,000
Less: Current portion of notes payable, related party notes payable and finance lease obligations (21,893,000) (19,345,000)
Notes payable, related party notes payable and finance lease obligations, net of current portion $ 2,748,000 $ 5,721,000