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7. Other Assets
 3 Months Ended
Mar. 31, 2013
Other Assets [Abstract]  
Other Assets
 Other assets consisted of:   March 31,     December 31,  
    2013     2012  
    ($ in thousands)  
             
Deposit with Trustee of 6-1/2% debentures   $ 184     $ 184  
Prepaid expenses     1       2  
Deferred charges     1       1  
    $ 186     $ 187