Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net Income	$ 32,494,507	$ 25,605,815	$ 19,845,294
Other Comprehensive Income:
Unrealized Holding Gains (Losses) Arising During the Period	22,782,469	(4,757,446)	298,854
Reclassification Adjustment for Net Gains of Sales of Securities Transactions Realized in Income	(4,398,599)	(805,513)	(2,166,766)
Total Comprehensive Income	50,878,377	20,042,856	17,977,382
Less: Preferred Dividends	9,020,470	8,607,032	8,607,032
Less: Redemption of Preferred Stock	2,942,149	0	0
Comprehensive Income Attributable to Common Shareholders	$ 38,915,758	$ 11,435,824	$ 9,370,350