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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
9 Months Ended 12 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 200,000,000 200,000,000
Common stock, shares issued 7,898,162 7,814,946
Common stock, shares outstanding 7,898,162 7,814,946
Series A junior participating preferred stock
   
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 2,500,000 2,500,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Series B 9.375% redeemable preferred stock
   
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, dividend rate (as a percent) 9.375% 9.375%
Preferred stock, liquidation value (in dollars) $ 16,640 $ 16,640
Preferred stock, shares authorized 2,000,000 2,000,000
Preferred stock, shares issued 665,592 665,592
Preferred stock, shares outstanding 665,592 665,592
Series C 9.125% redeemable preferred stock
   
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, dividend rate (as a percent) 9.125% 9.125%
Preferred stock, liquidation value (in dollars) $ 35,127 $ 35,127
Preferred stock, shares authorized 5,500,000 5,500,000
Preferred stock, shares issued 1,405,086 1,405,086
Preferred stock, shares outstanding 1,405,086 1,405,086