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Note 16 - Income Tax - Gross Operating Loss Carryforwards (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Domestic Tax Authority [Member] | Canada Revenue Agency [Member] |  |
Gross net operating loss carry forward | $ 37,428 | $ 49,924
Gross net operating loss not recognized | 153 | 141
Net operating loss carry foward | 37,275 | 49,783
Domestic Tax Authority [Member] | Canada Revenue Agency [Member] | Capital Loss Carryforward [Member] |  |
Gross capital loss carry forward | 183 | 369
Gross capital loss not recognized | 108 | 369
Net capital loss carry forward | 75 |
Foreign Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |
Gross net operating loss carry forward | 85,550 | 118,224
Gross net operating loss not recognized | 4,100 | 4,100
Net operating loss carry foward | 81,450 | 114,124
Foreign Tax Authority [Member] | Internal Revenue Service (IRS) [Member] | Capital Loss Carryforward [Member] |  |
Gross capital loss carry forward | 54 |
Net capital loss carry forward | 54 |
Foreign Tax Authority [Member] | Other Foreign Tax Authorities [Member] |  |
Gross net operating loss carry forward | 45,988 | 41,333
Gross net operating loss not recognized | 31,543 | 31,902
Net operating loss carry foward | 14,445 | 9,431
Foreign Tax Authority [Member] | Other Foreign Tax Authorities [Member] | Capital Loss Carryforward [Member] |  |
Gross capital loss carry forward | 6,521 | 6,489
Gross capital loss not recognized | $ 6,521 | $ 6,489

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- Definition The gross amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References No definition available. + Details
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- Definition The unrecognized amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References No definition available. + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319 + Details
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Carryforwards -URI http://asc.fasb.org/extlink&oid=6506874 + Details
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