EARNINGS PER SHARE (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
EARNINGS PER SHARE
Weighted average common shares outstanding, Basic	565,697	611,824	564,129	614,874
Weighted average of net additional shares outstanding assuming dilutive options exercised and proceeds used to purchase treasury stock and conversion of preferred stock	6,155	8,945	5,727	8,974
Weighted average number of shares outstanding, Diluted	571,852	620,769	569,856	623,848
Net income available to common shareholders	$ 699,319	$ 1,523,215	$ 1,151,188	$ 2,768,536
Net income available to common shareholders, diluted	$ 699,319	$ 1,523,215	$ 1,151,188	$ 2,768,536
Net earnings per share available to common shareholders, Basic (in dollars per share)	$ 1.24	$ 2.49	$ 2.04	$ 4.50
Net earnings per share available to common shareholders, Diluted (in dollars per share)	$ 1.22	$ 2.45	$ 2.02	$ 4.44