Condensed Consolidated Statements of Retained Earnings (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Condensed Consolidated Statements of Retained Earnings
Retained earnings at beginning of period	$ 30,228,793	$ 28,828,284
Net income	510,922	647,057
Cash dividends paid, $.55 per share in 2017 and $.43 in 2016	(531,373)	(415,437)
Retained earnings at end of period	$ 30,208,342	$ 29,059,904