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Note 10 - Commitments and Contingencies (Details Textual) | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Sep. 30, 2016 USD ($) shares | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2015 CAD shares | Dec. 31, 2014 USD ($)
Operating Leases, Rent Expense |  |  |  |  | $ 430 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares | shares |  |  |  | 133,229 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares | shares |  |  |  |  | 1,707,744 |  |
Research and Development Expense | $ 114,941 | $ 203,814 | $ 265,238 | $ 537,662 | $ 456,274 |  | $ 191,069
Employment [Member] |  |  |  |  |  |  |
Compensation |  |  |  |  | $ 6,489 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures | shares |  |  |  |  | 75,000 | 75,000 |
Stock Issued During Period, Value, Stock Options Exercised |  |  |  |  | $ 64,223 |  |
Stock Issued, Value, Stock Options Exercised, Net of Tax Benefit (Expense) |  |  |  |  | 53,519 |  |
Consultant [Member] |  |  |  |  |  |  |
Compensation | CAD |  |  |  |  |  | CAD 1,000 |
Stock Issued During Period, Value, Stock Options Exercised |  |  |  |  | 42,816 |  |
Stock Issued, Value, Stock Options Exercised, Net of Tax Benefit (Expense) |  |  |  |  | $ 35,680 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares | shares |  |  |  |  | 100,000 | 100,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares | shares |  |  |  |  | 4,167 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ / shares |  |  |  |  | $ 1 |  |
Research and Development Expense |  |  |  |  | $ 10,861 |  | $ 11,650
Consultant [Member] | Employee Stock Option [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term |  |  |  |  | 10 years | 10 years |

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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