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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Thousands, except Per Share data
Jun. 30, 2011
Dec. 31, 2010
STOCKHOLDERS' EQUITY:    
Cumulative convertible preferred stock, par value $ 0.01 $ 0.01
Cumulative convertible preferred stock, shares authorized 1,000 1,000
Cumulative convertible preferred stock, shares issued 108 108
Cumulative convertible preferred stock, shares outstanding 108 108
Cumulative convertible preferred stock, minimum liquidation preference $ 2.66 $ 2.66
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 55,000 55,000
Common stock, shares issued 41,007 40,407
Common stock, shares outstanding 39,989 39,388
Treasury stock, shares 1,018 1,019