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Note 3 - Income Taxes (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Note 3 - Income Taxes (Details) [Line Items] |  |
Deferred Tax Liabilities, Net | $ 29.8 us-gaap_DeferredTaxLiabilities |
Deferred Tax Assets, Valuation Allowance | 36 us-gaap_DeferredTaxAssetsValuationAllowance | 32 us-gaap_DeferredTaxAssetsValuationAllowance
Internal Revenue Service (IRS) [Member] |  |
Note 3 - Income Taxes (Details) [Line Items] |  |
Deferred Tax Assets, Net | 108.6 us-gaap_DeferredTaxAssetsLiabilitiesNet / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember |
Canada Revenue Agency [Member] |  |
Note 3 - Income Taxes (Details) [Line Items] |  |
Deferred Tax Liabilities, Net | $ 138.4 us-gaap_DeferredTaxLiabilities / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember |

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, before jurisdictional netting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, before jurisdictional netting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31931-109318 + Details
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