Basic and Diluted Earnings per Share (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:
Netincome (in dollars)	$ 292,704	$ 287,496	$ 273,760	$ 922,457
Denominator:
Denominator for basic earnings per share - weighted average shares	12,616,000	12,480,000	12,617,000	12,499,000
Dilutive effect of employee stock options and other warrants	226,000	156,000	168,000	158,000
Denominator for diluted earnings per share - adjusted weighted average shares	12,842,000	12,636,000	12,785,000	12,657,000
Basic earnings per share (in dollars per share)	$ 0.02	$ 0.02	$ 0.02	$ 0.07
Diluted earnings per share (in dollars per share)	$ 0.02	$ 0.02	$ 0.02	$ 0.07