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5. Other Assets
 12 Months Ended
Dec. 31, 2014
Other Assets [Abstract]  
Other Assets

Other assets consisted of:

             
    2014     2013  
Deposit with Trustee of 6 1/2%          
  debentures   $ 48,000     $ 184,000  
Prepaid expenses     2,000       1,000  
Deferred charges     1,000       1,000  
    $ 51,000     $ 186,000