4. Earnings Per Share (Details) - Schedule of earnings per share, basic and diluted (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Schedule of earnings per share, basic and diluted [Abstract]
Net income (in Dollars)	$ 486,975	$ 490,452	$ 464,007	$ 966,013
Shares used in calculation of income per share:
Basic	5,066,009	4,809,469	5,061,710	4,744,322
Effect of dilutive options	57,438	227,820	57,502	228,726
Diluted	5,123,447	5,037,289	5,119,212	4,973,048
Net income per share:
Basic (in Dollars per share)	$ 0.10	$ 0.10	$ 0.09	$ 0.20
Diluted (in Dollars per share)	$ 0.10	$ 0.10	$ 0.09	$ 0.19