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LONG-TERM DEBT AND CONVERTIBLE NOTES (Financed Insurance Loan ) (Details) - USD ($)
9 Months Ended
Sep. 30, 2018
Jul. 31, 2018
Dec. 31, 2017
Jul. 31, 2017
Debt Instrument [Line Items]        
Total debt $ 1,689,000   $ 3,416,000  
Financed Insurance Loan [Member]        
Debt Instrument [Line Items]        
Debt instrument, face amount   $ 400,000   $ 400,000
Interest rate (as a percent)   4.89%   4.99%
Debt instrument, maturity date Jun. 01, 2019      
Total debt $ 306,000   $ 183,000