Note 7 - Paycheck Protection Program Loan (Details Textual) - Paycheck Protection Program CARES Act [Member] - USD ($)	May 25, 2021	Apr. 24, 2020
Proceeds from Issuance of Unsecured Debt		$ 1,343,000
Gain (Loss) on Extinguishment of Debt, Total	$ 1,358,000

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

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