Condensed Consolidated Unaudited Statements Of Shareholders Equity - USD ($)	Common Stock	Treasury Stock	Additional Paid in Capital	Retained Earnings	Total
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)
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(413,100)	(413,100)
Compensation expense and issuance of stock in connection with equity-based awards	$ 120		1,079,274		1,079,394
Compensation expense and issuance of stock in connection with equity-based awards (in shares)	11,950
Repurchase of common stock		$ (3,186,846)			(3,186,846)
Repurchase of common stock (in shares)		(34,959)
Net income				2,768,536	2,768,536
Balance at Mar. 31, 2019	$ 8,561	$ (24,511,598)	23,148,372	66,203,466	64,848,801
Balance (in shares) at Mar. 31, 2019	856,039	(263,271)
Balance at Dec. 31, 2018	$ 8,561	$ (22,242,837)	23,110,713	64,796,415	65,672,852
Balance (in shares) at Dec. 31, 2018	856,039	(238,744)
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(116,164)	(116,164)
Compensation expense and issuance of stock in connection with equity-based awards			37,659		37,659
Repurchase of common stock		$ (2,268,761)			(2,268,761)
Repurchase of common stock (in shares)		(24,527)
Net income				1,523,215	1,523,215
Balance at Mar. 31, 2019	$ 8,561	$ (24,511,598)	23,148,372	66,203,466	64,848,801
Balance (in shares) at Mar. 31, 2019	856,039	(263,271)
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)			552,614
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(380,685)	$ (380,685)
Compensation expense and issuance of stock in connection with equity-based awards	$ 131		1,058,506		1,058,637
Compensation expense and issuance of stock in connection with equity-based awards (in shares)	13,328
Repurchase of common stock		$ (31,799)			(31,799)
Repurchase of common stock (in shares)		(416)
Net income				1,151,188	1,151,188
Balance at Mar. 31, 2020	$ 8,692	$ (28,863,654)	24,224,145	67,184,900	$ 62,554,083
Balance (in shares) at Mar. 31, 2020	869,367	(303,841)			565,526
Balance at Dec. 31, 2019	$ 8,692	$ (28,840,011)	24,192,954	66,592,637	$ 61,954,272
Balance (in shares) at Dec. 31, 2019	869,367	(303,534)
Increase (Decrease) in Stockholders' Equity
Dividends on common stock				(107,056)	(107,056)
Compensation expense and issuance of stock in connection with equity-based awards			31,191		31,191
Repurchase of common stock		$ (23,643)			(23,643)
Repurchase of common stock (in shares)		(307)
Net income				699,319	699,319
Balance at Mar. 31, 2020	$ 8,692	$ (28,863,654)	$ 24,224,145	$ 67,184,900	$ 62,554,083
Balance (in shares) at Mar. 31, 2020	869,367	(303,841)			565,526