Earnings Per Share Computations (Schedule Of Earnings Per Share Reconciliation) (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share Computations [Abstract]
Net income (numerator) amounts used for basic and diluted per share computations:	$ 448,362	$ 202,034	$ (166,536)	$ 532,504	$ 305,036	$ 230,132	$ (348,056)	$ 210,555	$ 1,016,364	$ 397,667
Basic									4,130,738	4,084,762
Plus dilutive effect of stock options									34,663	48,577
Diluted									4,165,401	4,133,339
Basic	$ 0.11	$ 0.05	$ (0.04)	$ 0.13	$ 0.07	$ 0.06	$ (0.09)	$ 0.05	$ 0.25	$ 0.10
Diluted	$ 0.11	$ 0.05	$ (0.04)	$ 0.13	$ 0.07	$ 0.06	$ (0.09)	$ 0.05	$ 0.24	$ 0.10