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v3.23.3

Note 1 - Summary of Significant Accounting Policies - Schedule of Other Comprehensive Income and Loss (Details) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Unrealized gains (losses), before tax | $ 1,560,426 | $ 5,617,251
Unrealized gains (losses), tax | (401,652) | (1,445,878)
Unrealized gains (losses) | 1,158,774 | 4,171,373
Transfer of realized gains to interest expense, before tax | (1,741,437) | 377,299
Transfer of realized gains to interest expense, tax | 448,244 | (97,121)
Transfer of realized gains to interest expense | (1,293,193) | 280,178
Net interest rate swaps, before tax | (181,011) | 5,994,550
Net interest rate swaps, tax | 46,592 | (1,542,999)
Net interest rate swaps | (134,419) | 4,451,551
Net gain (losses) arising during period, before tax | 491,270 | (1,221,368)
Net gain (losses) arising during period, tax | (126,453) | 314,379
Net gain (losses) arising during period |  | (906,989)
Amortization of actuarial losses, before tax | 78,813 | (60,280)
Amortization of actuarial losses, tax | (20,286) | 15,516
Amortization of actuarial losses | 58,527 | (44,764)
Net defined benefit plans, before tax | 570,083 | (1,281,648)
Net defined benefit plans, tax | (146,739) | 329,895
Net defined benefit plans | 423,344 | (951,753)
Other comprehensive income (loss), before tax | 389,072 | 4,712,902
Other comprehensive income (loss), tax | (100,147) | (1,213,104)
Other comprehensive income (loss) | 288,925 | 3,499,798
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] |  |
Net gain (losses) arising during period | 364,817 |
Other comprehensive income (loss) | $ 423,344 | $ (951,753)

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