CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Preferred Stock [Member] 6.75% Series G Cumulative Preferred Stock [Member]	Preferred Stock [Member] 6.25% Series H Cumulative Preferred Stock [Member]	Preferred Stock [Member] 5.875% Series K Cumulative Preferred Stock [Member]	Common Stock [Member] Common Stock [Member]	Common Stock [Member] Class A Common Stock [Member]	Additional Paid In Capital [Member]	Cumulative Distributions in Excess of Net Income [Member]	Cumulative Distributions in Excess of Net Income [Member] Common Stock [Member]	Cumulative Distributions in Excess of Net Income [Member] Class A Common Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total	Common Stock [Member]	Class A Common Stock [Member]
Balance at Oct. 31, 2018	$ 75,000	$ 115,000		$ 99	$ 298	$ 518,136	$ (133,858)			$ 7,466	$ 582,141
Balance (in shares) at Oct. 31, 2018	3,000,000	4,600,000		9,822,006	29,814,814
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect on Retained Earnings, Net of Tax							569			(569)	0
Net income applicable to Common and Class A common stockholders							5,854				5,854	$ 1,233	$ 4,621
Change in unrealized gain (loss) on interest rate swap										(5,335)	(5,335)
Cash dividends paid :
Common stock								$ (2,440)	$ (8,226)			(2,440)	(8,226)
Issuance of shares under dividend reinvestment plan				$ 0	$ 0	50					50
Issuance of shares under dividend reinvestment plan (in shares)				1,239	1,482
Shares issued under restricted stock plan				$ 1	$ 1	(2)					0
Shares issued under restricted stock plan (in shares)				137,200	111,450
Shares withheld for employee taxes					$ 0	(265)					(265)
Shares withheld for employee taxes (in shares)					(14,086)
Forfeiture of restricted stock					$ 0						0
Forfeiture of restricted stock (in shares)					(100)
Restricted stock compensation and other adjustments						1,066					1,066
Adjustments to redeemable noncontrolling interests							(147)				(147)
Balance at Jan. 31, 2019	$ 75,000	$ 115,000		$ 100	$ 299	518,985	(138,248)			1,562	572,698
Balance (in shares) at Jan. 31, 2019	3,000,000	4,600,000		9,960,445	29,913,560
Balance at Oct. 31, 2018	$ 75,000	$ 115,000		$ 99	$ 298	518,136	(133,858)			7,466	582,141
Balance (in shares) at Oct. 31, 2018	3,000,000	4,600,000		9,822,006	29,814,814
Balance at Oct. 31, 2019		$ 115,000	$ 110,000	$ 101	$ 299	520,988	(158,213)			(8,451)	579,724
Balance (in shares) at Oct. 31, 2019		4,600,000	4,400,000	9,963,751	29,893,241
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income applicable to Common and Class A common stockholders							5,071				5,071	1,082	3,989
Change in unrealized gain (loss) on interest rate swap										(1,012)	(1,012)
Cash dividends paid :
Common stock								$ (2,517)	$ (8,398)			$ (2,517)	$ (8,398)
Issuance of shares under dividend reinvestment plan				$ 0	$ 0	52					52
Issuance of shares under dividend reinvestment plan (in shares)				1,037	1,328
Shares issued under restricted stock plan				$ 1	$ 1	(2)					0
Shares issued under restricted stock plan (in shares)				105,450	120,800
Shares withheld for employee taxes					$ 0	(573)					(573)
Shares withheld for employee taxes (in shares)					(23,873)
Forfeiture of restricted stock					$ 0						0
Forfeiture of restricted stock (in shares)					0
Restricted stock compensation and other adjustments						1,051					1,051
Adjustments to redeemable noncontrolling interests							546				546
Balance at Jan. 31, 2020		$ 115,000	$ 110,000	$ 102	$ 300	$ 521,516	$ (163,511)			$ (9,463)	$ 573,944
Balance (in shares) at Jan. 31, 2020		4,600,000	4,400,000	10,070,238	29,991,496