Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Consolidated Balance Sheets (Unaudited) (Parenthetical) [Abstract]
Preferred stock, no par value(in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in share)	2,000,000	2,000,000
Preferred stock, issued(in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued(in shares)	5,290,000	5,290,000
Common stock, shares outstanding (shares)	2,822,449	2,822,449
Common stock, shares in treasury (in shares)	2,467,551	2,467,551