CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Common Stock	Treasury Stock	Additional Paid in Capital	Retained Earnings	Total
Balance at Sep. 30, 2016	$ 8,184	$ (12,476,381)	$ 19,525,554	$ 58,693,241	$ 65,750,598
Balance (in shares) at Sep. 30, 2016	818,453	(141,396)
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(706,906)	(706,906)
Compensation expense and issuance of stock in connection with equity-based awards	$ 130		1,300,365		1,300,495
Compensation expense and issuance of stock in connection with equity-based awards (in shares)	12,985
Repurchase of common stock		$ (1,124,921)			(1,124,921)
Repurchase of common stock (in shares)		(12,036)
Net income				2,949,576	2,949,576
Balance at Sep. 30, 2017	$ 8,314	$ (13,601,302)	20,825,919	60,935,911	$ 68,168,842
Balance (in shares) at Sep. 30, 2017	831,438	(153,432)			678,006
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(702,491)	$ (702,491)
Compensation expense and issuance of stock in connection with equity-based awards	$ 127		1,243,179		1,243,306
Compensation expense and issuance of stock in connection with equity-based awards (in shares)	12,651
Repurchase of common stock		$ (7,723,450)			(7,723,450)
Repurchase of common stock (in shares)		(74,880)
Net income				3,614,610	3,614,610
Balance at Sep. 30, 2018	$ 8,441	$ (21,324,752)	$ 22,069,098	$ 63,848,030	$ 64,600,817
Balance (in shares) at Sep. 30, 2018	844,089	(228,312)			615,777