Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - 6 months ended Jun. 30, 2015 - USD ($)	Preferred Stock	Common Stock	Capital in Excess of Par	Accumulated Other Comprehensive Income	Retained Earnings	Treasury Stock	Total
Beginning Balance, Shares at Dec. 31, 2014	0	8,235,095				926,338
Beginning Balance, Amount at Dec. 31, 2014	$ 0	$ 82,351	$ 32,873,383	$ 946,332	$ 8,203,003	$ (1,604,173)	$ 40,500,896
Stock-based compensation			77,784				77,784
Shares deducted from exercise of stock options for payment of withholding taxes, Shares		(30,755)
Shares deducted from exercise of stock options for payment of withholding taxes, Amount		$ (308)	(243,354)				(243,662)
Excess tax benefit from exercise of stock options			221,136				$ 221,136
Exercise of stock options, Shares		82,112
Exercise of stock options, Amount		$ 822	$ (822)
Acquisition of treasury stock, Shares						26,450
Acquisition of treasury stock, Amount						$ (204,060)	$ (204,060)
Dividends					$ (732,190)		(732,190)
Net income					$ 2,761,681		2,761,681
Change in unrealized gains on available-for-sale securities, net of tax				$ (357,912)			(357,912)
Ending Balance, Shares at Jun. 30, 2015	0	8,286,452				952,788
Ending Balance, Amount at Jun. 30, 2015	$ 0	$ 82,865	$ 32,928,127	$ 588,420	$ 10,232,494	$ (1,808,233)	$ 42,023,673