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 6 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Preferred Stock [Member]
Dec. 31, 2011
Preferred Stock [Member]
Jun. 30, 2012
Senior Common Stock [Member]
Dec. 31, 2011
Senior Common Stock [Member]
Jun. 30, 2012
Common Stock [Member]
Dec. 31, 2011
Common Stock [Member]
Jun. 30, 2012
Capital in Excess of Par Value [Member]
Jun. 30, 2012
Notes Receivable from Employees [Member]
Jun. 30, 2012
Distributions in Excess of Accumulated Earnings [Member]
Summary of changes in stockholders' equity                          
Beginning Balance     $ 135,314   $ 2 $ 2       $ 11 $ 11 $ 211,553 $ (422) $ (75,830)
Issuance of senior common stock and common stock, net     461               461    
Repayment of principal on employee notes receivable     6                 6  
Distributions declared to common, senior common and preferred stockholders     (10,298)                   (10,298)
Net income 854 1,370 2,155 2,850                 2,155
Ending Balance $ 127,638   $ 127,638   $ 2 $ 2       $ 11 $ 11 $ 212,014 $ (416) $ (83,973)