Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares issued
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	60,000	60,000
Common stock, shares issued	24,363	24,330
Common stock, shares outstanding	24,363	24,330