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Note 5 - Current Debt (Details Textual) - Interim Funding AgreementIFA [Member] - USD ($) $ in Millions	1 Months Ended
	Aug. 31, 2022	Sep. 30, 2022
Debt Instrument, Face Amount	$ 13.5
Long-Term Debt, Total		$ 3.5
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	1.75%

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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