INVESTMENTS - Amortized Cost and Fair Value of Available-for-Sale Securities by Contractual Maturities (Details 1) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Amortized Cost
Within one year	$ 326,927
More than one year to five years	5,882,828
More than five years to ten years	27,619,743
After ten years	22,122,291
Available-for-sale securities, single maturity date, amortized cost	55,951,789
Mortgage-backed securities (government- sponsored enterprises - residential)	53,765,575
Available-for-sale securities, amortized cost, total	109,717,364
Fair Value
Within one year	327,111
More than one year to five years	5,987,043
More than five years to ten years	27,668,950
After ten years	21,705,160
Available-for-sale securities, single maturity date, fair value	55,688,264	$ 55,748,263
Mortgage-backed securities (government- sponsored enterprises - residential)	53,073,119	$ 44,413,177
Available-for-sale securities, fair value, total	$ 108,761,383