Annual report pursuant to Section 13 and 15(d)

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details)

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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Allowance for doubtful accounts receivable
      
Movement in valuation and qualifying accounts      
Balance at Beginning of Year $ 647 $ 918 $ 1,840
Provisions 45 (133) 213
Amounts Written Off (86) (174) (1,148)
Amounts Recovered (1) 12  
Effect of Currency Translation 26 24 13
Balance at End of Year 631 647 918
Allowance for sales returns
      
Movement in valuation and qualifying accounts      
Balance at Beginning of Year 109 90 55
Provisions 2,296 625 640
Amounts Written Off (2,249) (606) (605)
Effect of Currency Translation (2)    
Balance at End of Year 154 109 90
Allowance for obsolete inventory
      
Movement in valuation and qualifying accounts      
Balance at Beginning of Year 2,083 2,397 2,833
Provisions 985 732 1,196
Amounts Written Off (809) (1,057) (1,605)
Amounts Recovered   10  
Effect of Currency Translation (5) 1 (27)
Balance at End of Year 2,254 2,083 2,397
Tax valuation allowance
      
Movement in valuation and qualifying accounts      
Balance at Beginning of Year 9,836 12,282 18,662
Provisions (1,687) (2,390) 302
Amounts Written Off   (56) (6,706)
Effect of Currency Translation     24
Balance at End of Year $ 8,149 $ 9,836 $ 12,282