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Note 2 - Liquidity and Going Concern Considerations (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Net Income (Loss) Attributable to Parent, Total	$ (6,458,382)	$ (4,936,182)
Retained Earnings (Accumulated Deficit), Ending Balance	(178,750,634)	$ (172,292,252)
Working Capital	$ (1,900,000)

X

- Definition

The capital of a business which is used in its day-to-day trading operations, calculated as the current assets minus the current liabilities.

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X

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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