CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Common Stock	Treasury Stock	Additional Paid in Capital	Retained Earnings	Total
Balance at Sep. 30, 2019	$ 8,561	$ (28,831,855)	$ 23,165,639	$ 66,414,397	$ 60,756,742
Balance (in shares) at Sep. 30, 2019	856,039	(303,425)
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(594,653)	(594,653)
Compensation expense and issuance of stock in connection with equity-based awards	$ 136		1,116,419		1,116,555
Compensation expense and issuance of stock in connection with equity-based awards (in shares)	13,828
Repurchase of common stock		$ (2,029,694)			(2,029,694)
Repurchase of common stock (in shares)		(28,727)
Net income				5,542,590	5,542,590
Balance at Sep. 30, 2020	$ 8,697	$ (30,861,549)	24,282,058	71,362,334	$ 64,791,540
Balance (in shares) at Sep. 30, 2020	869,867	(332,152)			537,715
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(3,355,301)	$ (3,355,301)
Compensation expense and issuance of stock in connection with equity-based awards	$ 137		636,723		636,860
Compensation expense and issuance of stock in connection with equity-based awards (in shares)	13,722
Repurchase of common stock		$ (5,738)			(5,738)
Repurchase of common stock (in shares)		(68)
Net income				15,545,265	15,545,265
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	(332,220)			551,369