Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	35,000,000	35,000,000
Common stock, shares issued	8,604,173	8,580,753
Common stock, shares outstanding	8,597,554	8,574,291
Treasury stock, shares	6,619	6,462