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INVESTMENT SECURITIES (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost, as adjusted $ 13,823,332 $ 19,853,860
Gross unrealized holding gains 607 3,270
Gross unrealized holding losses 5,255 2,492
Estimated fair value 13,818,684 19,854,638
Short-term Investments [Member] | US Government Agencies Debt Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost, as adjusted 13,823,332 19,853,860
Gross unrealized holding gains 607 3,270
Gross unrealized holding losses 5,255 2,492
Estimated fair value $ 13,818,684 $ 19,854,638