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Derivatives (Tables) | 12 Months Ended
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Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] | The following table presents the fair value of derivative instruments included within the consolidated balance sheets as of December 31, 2018 and 2017 (in thousands):
|  | Balance Sheet Location |  | Fair Value |
|  |  |  | 2018 |  |  | 2017 |
Derivatives designated as hedging instruments: |  |  |  |  |  |  |  |  |  |
Foreign currency forward contracts |  | Prepaid expenses and other current assets |  | $ | - |  |  | $ | 342 |
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] | The effect of foreign currency forward contracts designated as cash flow hedges on the consolidated statements of operations for the years ended December 31, 2018 and 2017 were as follows (in thousands):
|  | 2018 |  |  | 2017 |
Net gain (loss) recognized in OCI (1) |  | $ | (695 | ) |  | $ | 574 |
Net gain (loss) reclassified from accumulated OCI into income (2) |  | $ | (353 | ) |  | $ | (86 | )
Net gain recognized in income (3) |  | $ | - |  |  | $ | - |
(1) Net change in fair value of the effective portion classified into other comprehensive income ("OCI") (2) Effective portion classified within direct operating costs (3) There were no ineffective portions for the period presented.

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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624181-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 + Details
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