Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Consolidated Balance Sheets [Abstract]
Common stock, stated value	$ 5.00	$ 5.00
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	4,728,267	4,728,267
Common stock, shares outstanding	4,525,520	4,525,530
Treasury stock, shares	202,747	202,737