Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Preferred Stock, par value	$ 1.00	$ 1.00
Preferred Stock, shares authorized	1,000,000	1,000,000
Preferred Stock, shares issued	0	0
Common Stock, par value	$ 0.03	$ 0.03
Common Stock, shares authorized	35,000,000	35,000,000
Common Stock, shares issued	18,335,907	18,244,179
Common Stock, shares outstanding	17,867,823	17,786,949
Treasury stock, shares	468,084	457,230