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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2014
Valuation and Qualifying Accounts [Abstract]  
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
                         

 

 

 

   

Additions

   

 

   

 

 
 DESCRIPTION  

 Balance at

Beginning of
Year

   

Charged to

Costs and

Expenses

   

Charged to Other Accounts

    Deductions / (Recoveries) 1    

Balance at
End of Year

 
                                         

Allowance for Doubtful Accounts:

                                       
                                         

Year ended December 31,

                                       

2014

  $ 168     $ 56     $ —     $ 56     $ 168  

2013

  $ 166     $ 18     $ —     $ 16     $ 168  

1 Accounts receivable written-off as uncollectible, net of recoveries.