EARNINGS PER SHARE (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
EARNINGS PER SHARE
Weighted average common shares outstanding, Basic	551,369	565,697	549,729	564,129
Weighted average of net additional shares outstanding assuming dilutive options exercised and proceeds used to purchase treasury stock	9,572	6,155	8,012	5,727
Weighted average number of shares outstanding, Diluted	560,941	571,852	557,741	569,856
Net income available to common shareholders	$ 2,428,908	$ 699,319	$ 5,506,518	$ 1,151,188
Net income available to common shareholders, diluted	$ 2,428,908	$ 699,319	$ 5,506,518	$ 1,151,188
Net earnings per share available to common shareholders, Basic (in dollars per share)	$ 4.41	$ 1.24	$ 10.02	$ 2.04
Net earnings per share available to common shareholders, Diluted (in dollars per share)	$ 4.33	$ 1.22	$ 9.87	$ 2.02