CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($)	Common Stock	Additional Paid-In Capital	(Accumulated Deficit) Retained Earnings	Treasury Stock	Total
Balance at Sep. 30, 2017	$ 18,880	$ 51,583,841	$ 7,374,196	$ (21,368,537)	$ 37,608,380
Increase (Decrease) in Stockholders' Equity
Issuance of stock to directors	57	199,938			199,995
Net income (loss)			(3,653,905)		(3,653,905)
Balance at Sep. 30, 2018	18,937	51,783,779	3,720,291	(21,368,537)	34,154,470
Increase (Decrease) in Stockholders' Equity
Issuance of stock to directors	69	203,317			203,386
Net income (loss)			1,850,296		1,850,296
Balance at Sep. 30, 2019	19,006	51,987,096	5,570,587	(21,368,537)	36,208,152
Increase (Decrease) in Stockholders' Equity
Share-based compensation		17,337			17,337
Exercise of stock options	232	174,911			175,143
Issuance of stock to directors	73	159,919			159,992
Tax withholding related to cashless exercise of stock options		(880,476)			(880,476)
Dividends declared			(11,180,900)		(11,180,900)
Net income (loss)			3,269,783		3,269,783
Balance at Sep. 30, 2020	$ 19,311	$ 51,458,787	$ (2,340,530)	$ (21,368,537)	$ 27,769,031