CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Jun. 30, 2011	Dec. 31, 2010
Preferred stock, par value (in dollars per share)	$ 0.50	$ 0.50
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares Issued	0	0
Common Stock, par value(in dollars per share)	$ 0.50	$ 0.50
Common Stock, shares authorized	20,000,000	20,000,000
Common Stock, shares issued	9,949,324	9,949,324
Treasury stock, shares	533,767	561,533