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Accounts Payable and Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2012
Accounts Payable and Accrued Expenses [Abstract]  
Account Payable and Accrued Expenses
                 
$ in thousands   2012     2011  

Trade accounts payable, including due to subcontractors

  $ 11,098     $ 8,215  

Compensation and related benefits

    1,211       2,468  

Accrued interest

    219       224  

Other accrued expenses

    2,565       2,662  
   

 

 

   

 

 

 
    $ 15,093     $ 13,569