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Note 14 - Subsequent Event (Details Textual) - At The Market Offering [Member] - Subsequent Event [Member] - USD ($)	1 Months Ended	6 Months Ended
	Jul. 29, 2020	Jul. 29, 2020
Stock Issued During Period, Shares, New Issues (in shares)	1,083,531
Proceeds from Issuance of Common Stock	$ 4,473,828	$ 5,000,000
Payments of Stock Issuance Costs	$ 134,314

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The cash outflow for cost incurred directly with the issuance of an equity security.

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