DEBT - Long-Term Debt (Details)	9 Months Ended	12 Months Ended
	Jun. 30, 2022 USD ($) item	Sep. 30, 2021 USD ($) item
Long-term obligations
Long-term debt	$ 13,364,243	$ 5,615,467
Less current maturities	(1,204,348)	(561,202)
Long-term debt less current maturities	12,159,895	5,054,265
3.625% Real Estate Loan
Long-term obligations
Long-term debt	$ 4,190,214	$ 4,498,213
Fixed interest rate (as a percent)	3.625%	3.625%
Periodic installments of principal and interest	$ 47,399	$ 47,399
Number of owned distribution facilities which collateralize debt instrument | item	3	3
4.50% Note Payable
Long-term obligations
Long-term debt	$ 1,006,381	$ 1,117,254
Fixed interest rate (as a percent)	4.50%	4.50%
Periodic installments of principal and interest	$ 49,114	$ 49,114
4.10% Note Payable
Long-term obligations
Long-term debt	$ 5,674,355
Fixed interest rate (as a percent)	4.10%
Periodic installments of principal and interest	$ 53,361
3.25% Note Payable
Long-term obligations
Long-term debt	$ 2,086,721
Fixed interest rate (as a percent)	3.25%
Periodic installments of principal and interest	$ 17,016
2.90% Note Payable
Long-term obligations
Long-term debt	$ 406,572
Fixed interest rate (as a percent)	2.90%
Periodic installments of principal and interest	$ 7,934