Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

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Stockholders' Equity (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Preferred Stock [Member]
Dec. 31, 2012
Preferred Stock [Member]
Mar. 31, 2013
Senior Common Stock [Member]
Mar. 31, 2013
Common Stock [Member]
Dec. 31, 2012
Common Stock [Member]
Mar. 31, 2013
Capital in Excess of Par Value [Member]
Mar. 31, 2013
Notes Receivable from Employees [Member]
Mar. 31, 2013
Distributions in Excess of Accumulated Earnings [Member]
Summary of changes in stockholders' equity                    
Beginning Balance $ 122,365   $ 2 $ 2    $ 11 $ 11 $ 215,470 $ (410) $ (92,708)
Issuance of senior common stock and common stock, net 6,108              6,108    
Repayment of principal on employee notes receivable 35                35  
Distributions declared to common, senior common and preferred stockholders (5,293)                  (5,293)
Net income 433 1,301                433
Ending Balance $ 123,648   $ 2 $ 2    $ 11 $ 11 $ 221,578 $ (375) $ (97,568)