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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

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- Definition Total of the adjustments in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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