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Note 10 - Income Tax Benefit (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards, Total	$ 26,400,000	$ 9,000,000
Deferred Tax Assets, Valuation Allowance, Total	6,642,866	$ 5,967,884
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	674,982
Domestic Tax Authority [Member]
Reduction of Operating Loss Carryforward, Tax Audit	$ 1,300,000
Open Tax Year	2016 2017 2018 2019
State and Local Jurisdiction [Member]
Open Tax Year	2016 2017 2018 2019

X

- Definition

The amount of reduction in operating loss carryforward due to completion of tax audit.

+ References

No definition available.

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X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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- Definition

Tax year that remains open to examination under enacted tax laws, in CCYY format.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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-Publisher FASB
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-Topic 740
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-Section 50
-Paragraph 3
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- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 20
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