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Equipment and Leasehold Improvements (Tables)
12 Months Ended
Dec. 31, 2014
Equipment and Leasehold Improvements [Abstract]  
Schedule of Equipment and Leasehold Improvements
  December 31,  
  2014     2013  
Equipment   $ 26,006     $ 25,597  
Leasehold improvements     1,581       2,952  
      27,587       28,549  
Less accumulated depreciation and amortization     18,400       18,105  
    $ 9,187     $ 10,444