CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (AOCI) BY COMPONENT - Amount Reclassified from Accumulated Other Comprehensive Income and Affected Line Items in Statements of Income (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax effect	$ (28,462)	$ (18,742)	$ (99,215)	$ (90,848)
Total reclassification out of AOCI	55,250	36,383	192,595	176,353
Reclassification out of Accumulated Other Comprehensive Income | Income taxes
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax effect	(28,462)	(18,742)	(99,215)	(90,848)
Reclassification out of Accumulated Other Comprehensive Income | Net reclassified amount
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassification out of AOCI	55,250	36,383	192,595	176,353
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gains (losses) on available-for-sale securities | Net realized gains on sales of available-for-sale securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net realized gains on sales of available-for-sale securities	$ 83,712	$ 55,125	$ 291,810	$ 267,201