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Note 8 - Income Taxes - Deferred Tax Assets and Liabilities (Details) (Details) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
U.S. net operating loss carryforwards | $ 1,899,000 | $ 563,000
Stock compensation | (449,000) | 206,000
| 2,520,000 | 1,372,000
Valuation allowance | (2,520,000) | (1,372,000)
Net deferred tax assets |  |
Foreign Tax Authority [Member] |  |
Canadian Provincial income tax losses | 116,000 | 402,000
Canadian Provincial scientific investment tax credits | $ 56,000 | $ 201,000

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation, net of forfeitures. + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + 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 (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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