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Note 4 - Derivative Instruments and hedging activities (Tables) | 9 Months Ended
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Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] |
|  |  | As of September 30, 2013 |  |  | As of December 31, 2012 |
Derivatives | Balance Sheet Location |  | Fair Value Asset (Liability) |  |  | Fair Value Asset (Liability) |
Foreign currency forward contracts designated as cash flow hedges | Derivative instruments |  | $ | 139,487 |  |  | $ | 377,703 |
Foreign currency forward contracts not designated as cash flow hedges | Derivative instruments |  | $ | 16,057 |  |  | $ | 67,079 |
Total foreign currency forward contracts | Derivative instruments |  | $ | 155,544 |  |  | $ | 444,782 |
Derivative Instruments, Gain (Loss) [Table Text Block] |
Derivatives in Cash Flow Hedging Relationship |  | Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion) |  | Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) |  | Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) |  |  | Location of Gain or (Loss) Recognized in Income on Derivative (ineffective Portion and Amount Excluded from Effectiveness Testing) |  |  | Amount of Gain or (Loss) Recognized in Income on Derivative (ineffective Portion and Amount Excluded from Effectiveness Testing) |
Foreign currency forward contracts for the three months ended September 30, 2013 |  | $ | 506,509 |  | Operating expenses |  | $ | ( 140,893 | ) |  |  | — |  |  |  | — |
|  |  |  |  | Cost of revenues |  | $ | 500 |  |  |  |  |  |  |  |  |
Foreign currency forward contracts for the nine months ended September 30, 2013 |  | $ | 63,942 |  | Operating expenses |  | $ | ( 179,609 | ) |  |  | — |  |  |  | — |
|  |  |  |  | Cost of revenues |  | $ | ( 1,741 | ) |  |  |  |  |  |  |  |

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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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=7476318&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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