Condensed Consolidated Balance Sheets (Unaudited) [Parenthetical] (USD $)	Mar. 31, 2012	Dec. 31, 2011
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	6,259,975	6,259,975
Treasury stock, shares	1,005,092	1,005,092