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Note 15 - Derivative Financial Instruments - Gain or Loss on Derivatives Not Designated as Hedging Instruments (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Gain (loss) on derivatives | $ 178,128 | $ 4,355,657 | $ (27,141)
Not Designated as Hedging Instrument [Member] |  |  |
Gain (loss) on derivatives | 178,128 | 4,355,657 | (27,141)
Not Designated as Hedging Instrument [Member] | Interest Rate Contracts, Unrealized (Loss) / Gain [Member] |  |  |
Gain (loss) on derivatives | (4,036,107) | 4,223,839 | 153,835
Not Designated as Hedging Instrument [Member] | Interest Rate Contracts, Realized (Loss) / Gain [Member] |  |  |
Gain (loss) on derivatives | $ 4,214,235 | $ 131,818 | $ (180,976)

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC + Details
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