Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Preferred stock, par value	$ 0
Preferred stock, shares authorized	1,000,000
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	15,000,000	15,000,000
Common stock, shares issued	8,272,548	8,210,443
Treasury stock, shares	328,194	328,194
Series A Preferred Stock
Preferred stock, par value
Preferred stock, shares authorized	150,000	150,000
Preferred stock, shares issued
Series B Preferred Stock
Preferred stock, par value
Preferred stock, shares authorized	25,223	25,223
Preferred stock, shares issued	25,223	25,223
Preferred stock, liquidation value	$ 1,000	$ 1,000