DEBT - Long-Term Debt (Details) - USD ($)	6 Months Ended	12 Months Ended
	Mar. 31, 2024	Sep. 30, 2023
Long-term obligations
Long-term debt	$ 20,530,766	$ 13,630,504
Less current maturities	(4,485,028)	(1,955,065)
Long-term debt less current maturities	16,045,738	11,675,439
4.10% Note Payable
Long-term obligations
Long-term debt	$ 4,958,774	$ 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	$ 1,819,711	$ 1,891,638
Fixed interest rate (as a percent)	3.25%	3.25%
Periodic installments of principal and interest	$ 17,016	$ 17,016
7.40% Note Payable
Long-term obligations
Long-term debt	240,630	288,237
Periodic installments of principal and interest	$ 7,934	$ 7,934
Variable rate	7.40%	7.40%
6.04% Note Payable
Long-term obligations
Long-term debt	$ 5,511,651	$ 6,276,441
Fixed interest rate (as a percent)	6.04%	6.04%
Periodic installments of principal and interest	$ 131,987	$ 131,987
5.50% Note Payable
Long-term obligations
Long-term debt	$ 8,000,000
Fixed interest rate (as a percent)	5.50%
Periodic installments of principal and interest	$ 727,741