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Accounts Receivable (Tables)
9 Months Ended
Sep. 30, 2014
Receivables [Abstract]  
Accounts receivable

 

 

   

September 30,

2014

   

December 31,

2013

 
    (Thousands)  
Trade receivables   $ 8,922     $ 8,539  
Less allowance for doubtful accounts     (327 )     (369 )
Less allowance for returns     (2,066 )     (1,627 )
                 
Accounts receivable, net   $ 6,529     $ 6,543