Note 2 - Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Loss for the year from continuing operations	$ (3,156,302)	$ (2,981,987)
Income (loss) for the year from discontinued operations		$ 16,305
Basic and diluted weighted average number of common shares outstanding (in shares)	58,227,957	55,812,511
Basic and diluted profit (loss) per common share (Note 2)
Continuing operations (in dollars per share)	$ (0.05)	$ (0.05)
Discontinued operations (in dollars per share)		$ 0

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Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.

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The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.

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Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same.

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