Net Income Per Share Computations (Schedule Of Earnings Per Share Reconciliation) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net Income Per Share Computations [Abstract]
Net income (numerator) amounts used for basic and diluted per share	$ 925,837	$ 813,059	$ 3,511,490	$ 1,773,313
Weighted average shares (denominator) of common stock outstanding:
Basic	4,296,581	4,233,315	4,276,387	4,221,164
Plus dilutive effect of stock options	26,220	(3,877)	17,766	775
Diluted	4,322,801	4,229,438	4,294,153	4,221,939
Net income per common share:
Basic	$ 0.22	$ 0.19	$ 0.82	$ 0.42
Diluted	$ 0.21	$ 0.19	$ 0.82	$ 0.42