Note 10 - Derivative Financial Instruments (Details) - Summary of the Company’s Derivative Positions		6 Months Ended
Nov. 30, 2011 USD ($)	Jun. 30, 2013 Canadian Dollar/USD [Member] CAD	Jun. 30, 2013 Singapore Dollar/USD [Member] CAD	Jun. 30, 2013 Hong Kong Dollar/USD [Member] CAD	Jun. 30, 2013 Australian Dollar/USD [Member] CAD	Jun. 30, 2013 Interest Rate Swap [Member] CAD
Note 10 - Derivative Financial Instruments (Details) - Summary of the Company’s Derivative Positions [Line Items]
Notional Amount	$ 83,000,000	15,196,259	1,979,368	1,570,093	3,579,286	68,186,250
Weighted Average Remaining Maturity In Years		146 days	6 months	6 months	6 months	1 year 146 days
Average Exchange Rate		1.06	1.27	7.75	0.90

Nominal or face amount used to calculate payments on the derivative asset.

Reference 1: 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=7476318&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

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