Note 5 - Other Investments - Schedule of Other Investments (Details) - USD ($)	3 Months Ended	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024
Investment in unconsolidated affiliates	$ 21,133,986		$ 21,057,222
Cash investment	17,738	$ (0)	18,258
Change in accrued capital calls	6,629	0
Equity in earnings of unconsolidated affiliate	854,213	1,467,835
Distribution from unconsolidated affiliate	(801,816)	0
Change in investment in unconsolidated affiliates	76,764	$ 1,467,835
MVP [Member]
Investment in unconsolidated affiliates	21,000,744		20,948,347
Southgate [Member]
Investment in unconsolidated affiliates	$ 133,242		$ 108,875

The amount of change in investment in unconsolidated affiliate.

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- Definition

The noncash increase (decrease) in unconsolidated affiliate. The noncash change reflects the affect of fluctuations in capital contributions payable during the related period.

+ References

No definition available.

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- Definition

Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

+ References

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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The cash outflow associated with the purchase of noncontrolling interest during the period.

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