EARNINGS PER SHARE (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
EARNINGS PER SHARE
Weighted average number of common shares outstanding, Basic	567,889	551,369	565,694	549,729
Weighted average of net additional shares outstanding assuming dilutive options exercised and proceeds used to purchase treasury stock (1)	10,862	9,572	15,634	8,012
Weighted average number of shares outstanding, Diluted	578,751	560,941	581,328	557,741
Net income available to common shareholders	$ 3,006,182	$ 2,428,908	$ 6,007,238	$ 5,506,518
Net income available to common shareholders, diluted	$ 3,006,182	$ 2,428,908	$ 6,007,238	$ 5,506,518
Net earnings per share available to common shareholders, Basic (in dollars per share)	$ 5.29	$ 4.41	$ 10.62	$ 10.02
Net earnings per share available to common shareholders, Diluted (in dollars per share)	$ 5.19	$ 4.33	$ 10.33	$ 9.87