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
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Allowance for doubtful accounts receivable      
Movement in valuation and qualifying accounts      
Balance at Beginning of Year $ 849 $ 1,087 $ 631
Provisions 83 (121) 535
Amounts Written Off (714) (75) (18)
Amounts Recovered 0 4 1
Effect of Currency Translation (28) (46) (62)
Balance at End of Year 190 849 1,087
Allowance for sales returns      
Movement in valuation and qualifying accounts      
Balance at Beginning of Year 129 135 154
Provisions 1,126 1,527 1,435
Amounts Written Off (1,155) (1,525) (1,454)
Amounts Recovered 0 0 0
Effect of Currency Translation (6) (8) 0
Balance at End of Year 94 129 135
Allowance for obsolete inventory      
Movement in valuation and qualifying accounts      
Balance at Beginning of Year 2,188 2,407 2,254
Provisions 885 1,503 1,600
Amounts Written Off (962) (1,666) (1,577)
Amounts Recovered 0 1 41
Effect of Currency Translation (29) (57) 89
Balance at End of Year 2,082 2,188 2,407
Tax valuation allowance      
Movement in valuation and qualifying accounts      
Balance at Beginning of Year 13,169 11,340 8,149
Provisions (6,088) 1,829 3,191
Amounts Written Off 0 0 0
Amounts Recovered 0 0 0
Effect of Currency Translation (516) 0 0
Balance at End of Year $ 6,565 $ 13,169 $ 11,340