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Note 18 - Income Tax - Gross Operating Loss Carryforwards (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Domestic Tax Authority [Member] | Canada Revenue Agency [Member] |  |
Gross net operating loss carry forward | $ 16,525 | $ 16,249
Gross net operating loss not recognized | 24 | 27
Net operating loss carry foward | 16,501 | 16,222
Domestic Tax Authority [Member] | Canada Revenue Agency [Member] | Capital Loss Carryforward [Member] |  |
Gross capital loss carry forward | 1,864 | 2,208
Gross capital loss not recognized | 1,758 | 1,869
Net capital loss carry forward | 106 | 339
Foreign Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |
Gross net operating loss carry forward | 3,144 | 1,315
Gross net operating loss not recognized | 922 | 921
Net operating loss carry foward | 2,222 | 394
Foreign Tax Authority [Member] | Internal Revenue Service (IRS) [Member] | Capital Loss Carryforward [Member] |  |
Gross capital loss carry forward | 1,698 | 1,698
Gross capital loss not recognized | 1,698 | 1,698
Net capital loss carry forward |  |
Foreign Tax Authority [Member] | Other Foreign Tax Authorities [Member] |  |
Gross net operating loss carry forward | 40,006 | 39,147
Gross net operating loss not recognized | 21,476 | 27,363
Net operating loss carry foward | 18,530 | 11,784
Foreign Tax Authority [Member] | Other Foreign Tax Authorities [Member] | Capital Loss Carryforward [Member] |  |
Gross capital loss carry forward | 6,271 | 6,285
Gross capital loss not recognized | 6,271 | 6,285
Net capital loss carry forward |  |

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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 The gross amount of the tax credit 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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