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Derivatives and Hedging Activities (Tables) | 12 Months Ended
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Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] | The following table presents the fair values of our derivative instrument included within the Consolidated Balance Sheet as of December 31, 2017 (in thousands):
| Derivatives
| Consolidated Balance Sheet Location |  | December 31, 2017
Derivatives designated as cash flow hedging instruments |  |  |
Foreign exchange forward contract: | Accrued liabilities |  | $ | 187 |
| Other long-term liabilities |  | 402 |
Total derivatives designated as cash flow hedging instruments |  |  | $ | 589 |
The following table presents the amounts affecting the Consolidated Statements of Operations for the year ended December 31, 2017 (in thousands):
| Line Item in the Consolidated Statements of Operations |  | Year Ended December 31, 2017
Derivatives designated as cash flow hedging instruments |  |  |
Foreign exchange forward contracts | Cost of goods sold |  | $ | 885 |
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] | We recognized the following gains on our foreign exchange contract designated as a cash flow hedge (in thousands):
|  | Amount of Gain Recognized in Other Comprehensive Income on Derivatives |  |  | Amount of Gain Reclassified From Accumulated Other Comprehensive Income into Income
|  | Year Ended December 31, 2017 |  |  | Location of Gain Reclassified From Accumulated Other Comprehensive Income into Income |  | Year Ended December 31, 2017
Derivatives designated as cash flow hedges: |  |  |  |  |  |  |
Foreign exchange forward contract |  | $ | 296 |  |  |  | Cost of goods sold |  | $ | 885 |
Total derivatives designated as cash flow hedging instruments |  | $ | 296 |  |  |  |  |  | $ | 885 |

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- Definition Tabular disclosure of the effective portion of gains and losses on derivative instruments (and nonderivative instruments) designated and qualifying in cash flow hedges recorded in accumulated other comprehensive income (loss) during the term of the hedging relationship and reclassified into earnings during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure for cash flow hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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