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Condensed Consolidated Statements of Retained Earnings (Unaudited) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Condensed Consolidated Statements of Retained Earnings    
Retained earnings at beginning of period $ 28,828,284 $ 28,077,791
Net income 647,057 462,473
Cash dividends paid, $.43 per share in 2016 and 2015 (415,437) (415,437)
Retained earnings at end of period $ 29,059,904 $ 28,124,827