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Note 14 - Subsequent Events (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Oct. 31, 2014
Subsequent Event [Member] | Canada, Dollars
Note 14 - Subsequent Events (Details) [Line Items]
Foreign Currency Exchange Rate, Translation	1.1376
Subsequent Event [Member] | Foreign Exchange Forward [Member]
Note 14 - Subsequent Events (Details) [Line Items]
Derivative, Notional Amount	$ 5.0
Subsequent Event [Member]
Note 14 - Subsequent Events (Details) [Line Items]
Derivative, Notional Amount	5.0
Scenario, Forecast [Member] | Minimum [Member]
Note 14 - Subsequent Events (Details) [Line Items]
Payments to Acquire Interest in Joint Venture	4
Scenario, Forecast [Member] | Maximum [Member]
Note 14 - Subsequent Events (Details) [Line Items]
Payments to Acquire Interest in Joint Venture	$ 5

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

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Period Type:	instant

X

- Details

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X

- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 30

-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

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X

- Definition

The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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