CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Statement Of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.20	$ 0.20
Common stock, shares authorised	4,000,000	4,000,000
Common stock, shares issued	2,614,506	2,614,506
Common stock, shares outstanding	2,074,257	1,981,877
Treasury stock, shares	305,135	377,135