Net Income Per Share Computations (Schedule Of Earnings Per Share Reconciliation) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net Income Per Share Computations [Abstract]
Net income (numerator) amounts used for basic and diluted per share computations:	$ 571,650	$ 442,934	$ 960,254	$ 848,941
Weighted average shares (denominator) of common stock outstanding:
Basic	4,220,703	4,185,908	4,215,158	4,183,512
Plus dilutive effect of stock options	9,235	14,417	3,702	18,306
Diluted	4,229,938	4,200,325	4,218,860	4,201,818
Net income per common share:
Basic	$ 0.14	$ 0.11	$ 0.23	$ 0.20
Diluted	$ 0.14	$ 0.11	$ 0.23	$ 0.20