Condensed Consolidated Statements of Retained Earnings (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Condensed Consolidated Statements of Retained Earnings
Retained earnings at beginning of period	$ 30,228,793	$ 28,828,284
Net income	973,277	1,442,116
Cash dividends paid, $.75 per share in 2017 and $.61 in 2016	(724,599)	(589,341)
Retained earnings at end of period	$ 30,477,471	$ 29,681,059