CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Preferred stock, par value per share	$ 0.50	$ 0.50
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued
Common stock, par value per share	$ 0.50	$ 0.50
Common stock, shares authorized	40,000,000	20,000,000
Common stock, shares issued	11,931,147	11,931,147
Treasury stock, shares	435,090	467,316