INVESTMENT SECURITIES (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost, as adjusted	$ 47,115,334	$ 47,169,544
Gross unrealized holding gains	102,929	0
Gross unrealized holding losses	0	108,668
Estimated fair value	47,218,263	47,060,876
Short-term Investments [Member] | US Government Agencies Debt Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost, as adjusted	25,680,319	22,166,512
Gross unrealized holding gains	22,601	0
Gross unrealized holding losses	0	22,822
Estimated fair value	25,702,920	22,143,690
Other Long-term Investments [Member] | US Government Agencies Debt Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized cost, as adjusted	21,435,105	25,003,032
Gross unrealized holding gains	80,328	0
Gross unrealized holding losses	0	85,846
Estimated fair value	$ 21,515,343	$ 24,917,186