Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income (Loss)	$ (22,143)	$ 29,800	$ 56,006
Noncash Items Included in Net Income (Loss):
Depreciation & Amortization	51,263	47,142	39,788
Stock Compensation Expense	452	784	434
Deferred Straight Line Rent	(1,976)	(1,926)	(1,973)
Securities Available for Sale Received as Dividend Income	(1,213)	(874)	(829)
Unrealized Holding Losses Arising During the Periods	77,380	24,680	0
Gain on Sale of Securities Transactions	0	0	(111)
Gain on Sale of Real Estate Investments	0	0	(7,485)
Changes in:
Tenant & Other Receivables	(3,993)	18	1,397
Prepaid Expenses	(840)	(524)	(755)
Other Assets & Capitalized Lease Costs	(2,052)	729	(2,037)
Accounts Payable, Accrued Expenses & Other Liabilities	1,951	919	265
NET CASH PROVIDED BY OPERATING ACTIVITIES	98,829	100,748	84,700
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of Real Estate & Intangible Assets	(175,261)	(138,964)	(283,403)
Capital Improvements	(5,996)	(14,734)	(9,084)
Proceeds from Sale of Real Estate Investments	0	0	22,083
Return of Deposits on Real Estate	2,000	200	450
Deposits Paid on Acquisitions of Real Estate	(1,670)	(6,000)	(200)
Proceeds from Securities Available for Sale Called for Redemption	251	0	2,620
Purchase of Securities Available for Sale	0	(54,136)	(64,150)
NET CASH USED IN INVESTING ACTIVITIES	(180,676)	(213,634)	(331,684)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from Fixed Rate Mortgage Notes Payable	110,310	96,500	175,160
Principal Payments on Fixed Rate Mortgage Notes Payable	(55,855)	(63,350)	(54,354)
Net Draws (Repayments) from Loans Payable	(20,000)	(91,609)	66,517
Financing Costs Paid on Debt	(2,525)	(662)	(1,470)
Proceeds from Underwritten Public Offering of Common Stock, net of offering costs	0	132,338	0
Proceeds from At-The-Market Preferred Equity Program, net of offering costs	122,382	58,199	40,094
Proceeds from Issuance of Common Stock in the DRIP, net of Dividend Reinvestments	18,815	57,079	77,100
Shares repurchased through the Common Stock Repurchase Plan	(4,276)	0	0
Proceeds from the Exercise of Stock Options	1,016	567	570
Preferred Dividends Paid	(25,839)	(18,465)	(16,876)
Common Dividends Paid, net of Reinvestments	(58,843)	(46,856)	(40,658)
NET CASH PROVIDED BY FINANCING ACTIVITIES	85,185	123,741	246,083
Net Increase (Decrease) in Cash and Cash Equivalents	3,338	10,855	(901)
Cash and Cash Equivalents at Beginning of Year	20,179	9,324	10,225
CASH AND CASH EQUIVALENTS AT END OF YEAR	$ 23,517	$ 20,179	$ 9,324