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Note 4 - Derivative instrument assets/liabilities: | 12 Months Ended
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Dec. 31, 2011
Derivative Instruments and Hedging Activities Disclosure [Text Block] | 4. Derivative instrument assets/liabilities: The Company enters into foreign currency contracts to hedge a portion of the Company’s expected Canadian dollar requirements. All derivative financial instruments are recorded at fair value on our consolidated balance sheet. The fair value of our foreign currency contracts at December 31, 2011 was a net unrealized loss of $0.7 million (as compared to a net unrealized gain of $0.8million at December 31, 2010). The unrealized gains are a result of fluctuations in foreign exchange rates between the date the currency forward contracts were entered into and the valuation date at period end. The net unrealized loss of our foreign currency contracts during the year ended December 31, 2011 is due primarily to the unfavorable movement in exchange rates between the Canadian and U.S. dollars and the settlement of contracts with significant gains. At December 31, 2010, the Company had forward exchange contracts to trade U.S. dollars in exchange for Canadian dollars as follows:
Maturity date |  | Notional amount of U.S. dollars |  |  | Weighted average exchange rate of U.S. dollars |  |  | Fair value loss (gain) |
January - March 2012 |  | $ | 5,100,000 |  |  |  | 0.9755 |  |  | $ | 211,764 |
April - June 2012 |  |  | 5,100,000 |  |  |  | 0.9785 |  |  |  | 206,286 |
July - September 2012 |  |  | 5,100,000 |  |  |  | 0.9855 |  |  |  | 178,390 |
October - December 2012 |  |  | 5,100,000 |  |  |  | 0.9855 |  |  |  | 184,586 |
January – March 2013 |  |  | 6,000,000 |  |  |  | 1.0277 |  |  |  | (25,371 | )
April – May 2013 |  |  | 4,000,000 |  |  |  | 1.0385 |  |  |  | (56,173 | )
Total |  | $ | 30,400,000 |  |  |  | 0.9980 |  |  | $ | 699,482 |
As of December 31, 2011, we had outstanding foreign currency forward contracts amounting to $30.4 million. As we do not comply with the documentation requirements for hedge accounting, we account for the fair value of the derivative instruments within the consolidated balance sheet as a derivative financial asset or liability and the corresponding change in fair value is recorded in the consolidated statement of operations. We have no other freestanding or embedded derivative instruments. The Company is not required to apply hedge accounting and, therefore, for the year ended December 31, 2011, the Company recorded a loss of $0.5 million on currency forward contracts in its consolidated statements of operations. For the year ended December 31, 2010, the Company recorded a gain on currency forward contracts of $0.9 million. For the year ended December 31, 2009, the Company recorded a gain of $3.2 million on currency forward contracts in its consolidated statements of operations.

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- Definition The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5618551-113959 Reference 5: 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=6935481&loc=SL5624163-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5708773-113959 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6935481&loc=d3e41638-113959 Reference 8: 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=6935481&loc=SL5624171-113959 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6935481&loc=d3e41620-113959 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6935481&loc=d3e41641-113959 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6887037&loc=d3e80748-113994 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6887037&loc=d3e80784-113994 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579240-113959 Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6935481&loc=d3e41635-113959 Reference 16: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624181-113959 Reference 17: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624258-113959 Reference 18: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959 Reference 19: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 Reference 20: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 45 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. 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