Note 12 - Paycheck Protection Program (Details Textual) - USD ($)		1 Months Ended	12 Months Ended
Apr. 24, 2020	May 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Proceeds from Notes Payable, Total			$ 0	$ 335,000
Gain (Loss) on Extinguishment of Debt, Total			$ 335,000	(0)
Paycheck Protection Program CARES Act [Member]
Proceeds from Notes Payable, Total	$ 334,500			$ 335,000
Gain (Loss) on Extinguishment of Debt, Total		$ 334,500

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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