Net Income per Share

3 Months Ended

Mar. 31, 2013

Net Income per Share [Abstract]

Net Income per Share

(5) Net Income per Share

Basic net income per share is based on the weighted average number of common shares outstanding. Diluted net income per share is based on the weighted average number of common shares outstanding and the dilutive effect of outstanding stock options:

	3 Months Ended
	March 31,
	2013			2012
Weighted average number of common shares outstanding – basic		7,946,462			7,939,165
Potential shares exercisable under stock option plans		517,000			463,500
LESS: Shares which could be repurchased under treasury stock method		(203,229	)		(186,601	)
Weighted average number of common shares outstanding – diluted		8,260,233			8,216,064