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Note 10 - Derivative Financial Instruments (Details Textual) $ in Millions | Apr. 21, 2020 USD ($)
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Interest Rate Swap [Member] |
Derivative, Number of Instruments Held, Total | 2
Interest Rate Swap One [Member] |
Derivative, Notional Amount | $ 5
Derivative, Fixed Interest Rate | 0.79%
Interest Rate Swap Two [Member] |
Derivative, Notional Amount | $ 4
Derivative, Fixed Interest Rate | 0.82%

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