Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
NET INCOME	$ 5,157,664	$ 5,594,011	$ 5,716,767
OTHER ITEMS OF COMPREHENSIVE INCOME (LOSS):
Change in unrealized gain (loss) on investment securities available-for-sale, before income taxes	1,182,895	(799,869)	(186,775)
Change in unrealized gain (loss) on interest rate swaps, before income taxes	632,990
Less: Reclassification adjustment for realized gains on investment securities included in net income, before income taxes	(46,329)	(192,537)	(187,090)
Total other items of comprehensive income (loss)	1,769,556	(992,406)	(373,865)
Income tax expense (benefit) related to other items of comprehensive income	666,508	(367,121)	(138,330)
Other comprehensive income (loss)	1,103,048	(625,285)	(235,535)
TOTAL COMPREHENSIVE INCOME	$ 6,260,712	$ 4,968,726	$ 5,481,232