Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Condensed Consolidated Balance Sheets [Abstract]
Common stock, par value	$ 1.25	$ 1.25
Common stock, shares authorized	12,000,000	12,000,000
Common stock, shares issued	8,839,833	8,782,174
Common stock, shares outstanding	8,839,833	8,782,174