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Accounts Receivable, Net (Tables)
 12 Months Ended
Dec. 31, 2014
ACCOUNTS RECEIVABLE, NET [Abstract]  
Accounts Receivable Lessen By Provision for Doubtful Receivables
 
December 31,
2014
 
December 31,
2013
Accounts  receivable
$             13,327          
 
$          16,911        
Less: Provision for doubtful receivables
                    (49)          
 
              (613)         
Accounts receivable, net
$             13,278      
 
$         16,298           
Changes To Provisions For Doubtful Receivables
 
 
 
Allowance for doubtful receivables
 
Balance
at
beginning
of period
 
Charges
to costs
and
expenses
 
 
 
Amount
utilized
 
Balance
at end
of
period
Year ended December 31, 2014
 
$      (613)    
 
$                  -
 
$            564
 
$         (49)
Year ended December 31, 2013
 
$      (458)     
 
$            (155)           
 
$                 -    
 
$       (613)
Year ended December 31, 2012
 
$        (49)       
 
$            (409)         
 
$                 -   
 
$       (458)