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LONG-TERM DEBT (Credit Facility Table) (Details) - USD ($)
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Line of Credit Facility [Line Items]      
Credit facility borrowings $ 2,199,423 $ 5,240,000
Prime Rate [Member]      
Line of Credit Facility [Line Items]      
Credit facility borrowings 2,199,423 240,000
LIBOR Rate [Member]      
Line of Credit Facility [Line Items]      
Credit facility borrowings $ 5,000,000