Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Sep. 30, 2022	$ 49,102,675	$ 41,479,459	$ 544,158	$ 1,964,364	$ 93,090,656
Net income	0	0	11,299,282	0	11,299,282
Other comprehensive income (loss)	0	0	0	288,925	288,925
Exercise of stock options	62,500	137,500	0	0	200,000
Stock-based compensation	0	21,560	0	0	21,560
Cash dividends declared	0	0	(7,871,160)	0	(7,871,160)
Issuance costs	0	(221,618)	0	0	(221,618)
Issuance of common stock	911,095	3,013,885	0	0	3,924,980
Balance at Sep. 30, 2023	50,076,270	44,430,786	3,972,280	2,253,289	100,732,625
Net income	0	0	11,760,896	0	11,760,896
Other comprehensive income (loss)	0	0	0	(926,718)	(926,718)
Stock-based compensation	0	51,500	0	0	51,500
Cash dividends declared	0	0	(8,160,737)	0	(8,160,737)
Issuance costs	0	(82,793)	0	0	(82,793)
Issuance of common stock	1,173,225	3,588,777	0	0	4,762,002
Balance at Sep. 30, 2024	$ 51,249,495	$ 47,988,270	$ 7,572,439	$ 1,326,571	$ 108,136,775