CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Total
Balance at Sep. 30, 2021	$ 8,834	$ (30,867,287)	$ 24,918,781	$ 83,552,298	$ 77,612,626
Balance (in shares) at Sep. 30, 2021	883,589
Balance (in shares) at Sep. 30, 2021		(332,220)
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(3,440,202)	(3,440,202)
Compensation expense and settlement of equity-based awards	$ 334		1,984,420		1,984,754
Compensation expense and settlement of equity-based awards (in shares)	33,420
Net income available to common shareholders				16,672,257	16,672,257
Balance at Sep. 30, 2022	$ 9,168	$ (30,867,287)	26,903,201	96,784,353	$ 92,829,435
Balance (in shares) at Sep. 30, 2022	917,009				584,789
Balance (in shares) at Sep. 30, 2022		(332,220)
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(3,534,308)	$ (3,534,308)
Compensation expense and settlement of equity-based awards	$ 263		3,682,187		3,682,450
Compensation expense and settlement of equity-based awards (in shares)	26,263
Repurchase of common stock		$ (404,876)			(404,876)
Repurchase of common stock (in shares)		(2,363)
Net income available to common shareholders				11,596,393	11,596,393
Balance at Sep. 30, 2023	$ 9,431	$ (31,272,163)	$ 30,585,388	$ 104,846,438	$ 104,169,094
Balance (in shares) at Sep. 30, 2023	943,272				608,689
Balance (in shares) at Sep. 30, 2023		(334,583)