DEBT - Long-Term Debt (Details) - USD ($)	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Long-term obligations
Long-term debt	$ 21,765,351	$ 13,630,504
Less current maturities	(5,202,443)	(1,955,065)
Long-term debt less current maturities	16,562,908	11,675,439
4.10% Note Payable
Long-term obligations
Long-term debt	$ 4,739,192	$ 5,174,188
Fixed interest rate (as a percent)	4.10%	4.10%
Periodic installments of principal and interest	$ 53,361	$ 53,361
3.25% Note Payable
Long-term obligations
Long-term debt	$ 1,746,606	$ 1,891,638
Fixed interest rate (as a percent)	3.25%	3.25%
Periodic installments of principal and interest	$ 17,016	$ 17,016
6.04% Note Payable
Long-term obligations
Long-term debt	$ 4,793,228	$ 6,276,441
Fixed interest rate (as a percent)	6.04%	6.04%
Periodic installments of principal and interest	$ 129,685	$ 129,685
5.50% Unsecured Note Payable
Long-term obligations
Long-term debt	$ 6,756,024
Fixed interest rate (as a percent)	5.50%
Periodic installments of principal and interest	$ 727,741
5.75% Unsecured Note Payable
Long-term obligations
Long-term debt	$ 3,730,301
Fixed interest rate (as a percent)	5.75%
Periodic installments of principal and interest	$ 225,761
7.58% Notes Payable
Long-term obligations
Long-term debt		288,237
Periodic installments of principal and interest		$ 7,934
Variable rate		7.58%