Consolidated Statement of Stockholders' Equity (unaudited) (USD $)	Common Stock	Capital in Excess of Par	Accumulated Other Comprehensive Income	Retained Earnings	Treasury Stock	Total
Beginning Balance, Amount at Dec. 31, 2013	$ 81,860	$ 32,692,568	$ 305,219	$ 4,187,209	$ (1,557,445)	$ 35,709,411
Beginning Balance, Shares at Dec. 31, 2013	8,186,031				919,458
Stock-based compensation		118,582				118,582
Shares deducted from exercise of stock options for payment of withholding taxes, Amount	(93)	(66,002)				(66,095)
Shares deducted from exercise of stock options for payment of withholding taxes, Shares	(9,309)
Excess tax benefit from exercise of stock options		74,471				74,471
Exercise of stock options, Amount	450	5,426				5,876
Exercise of stock options, Shares	44,980
Acquisition of treasury stock, Amount					(46,728)	(46,728)
Acquisition of treasury stock, Shares					6,880
Dividends				(947,186)		(947,186)
Net income				3,565,316		3,565,316
Change in unrealized gains on available-for-sale securities, net of tax			588,121			588,121
Ending Balance, Amount at Sep. 30, 2014	$ 82,217	$ 32,825,045	$ 893,340	$ 6,805,339	$ (1,604,173)	$ 39,001,768
Ending Balance, Shares at Sep. 30, 2014	8,221,702				926,338