Net Income Per Share Computations (Schedule Of Earnings Per Share Reconciliation) (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Net Income Per Share Computations [Abstract]
Net income (numerator) amounts used for basic and diluted per share computations:	$ 361,880	$ 170,503	$ 193,248	$ 291,081	$ 448,362	$ 202,034	$ (166,536)	$ 532,504	$ 1,016,712	$ 1,016,364
Weighted average shares (denominator) of common stock outstanding:
Basic									4,164,437	4,130,738
Plus dilutive effect of stock options									25,052	34,663
Diluted									4,189,489	4,165,401
Net income per common share:
Basic	$ 0.09	$ 0.04	$ 0.05	$ 0.07	$ 0.11	$ 0.05	$ (0.04)	$ 0.13	$ 0.24	$ 0.25
Diluted	$ 0.09	$ 0.04	$ 0.05	$ 0.07	$ 0.11	$ 0.05	$ (0.04)	$ 0.13	$ 0.24	$ 0.24