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Note 16 - Operating and Reporting Segments - Financial Information Relating to Segment Operations (Details) - USD ($) $ in Thousands		3 Months Ended				12 Months Ended
		Jan. 31, 2019	Oct. 31, 2018	Jan. 31, 2018	Jul. 31, 2017	Oct. 31, 2018
Revenues, Total		$ 380,594		$ 417,166
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		(17,106)	$ 48,100	(30,471)	$ (50,200)	$ 8,100
Corporate, Non-Segment [Member]
Revenues, Total	[1]	603		4,180
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total	[1]	(34,425)		(34,842)
Homebuilding [Member]
Revenues, Total		370,986		406,278
Homebuilding [Member] | Operating Segments [Member]
Revenues, Total		370,383		402,098
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		16,185		1,824
Homebuilding [Member] | Northeast [Member] | Operating Segments [Member]
Revenues, Total		19,941		20,199
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		5,879		(9,701)
Homebuilding [Member] | Mid-Atlantic [Member] | Operating Segments [Member]
Revenues, Total		53,430		71,297
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		(7)		1,952
Homebuilding [Member] | Midwest [Member] | Operating Segments [Member]
Revenues, Total		44,921		40,579
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		(849)		(2,344)
Homebuilding [Member] | Southeast [Member] | Operating Segments [Member]
Revenues, Total		43,991		56,668
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		(2,929)		(1,661)
Homebuilding [Member] | Southwest [Member] | Operating Segments [Member]
Revenues, Total		118,199		128,305
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		2,386		5,511
Homebuilding [Member] | West [Member] | Operating Segments [Member]
Revenues, Total		89,901		85,050
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		11,705		8,067
Financial Services [Member]
Revenues, Total		9,608		10,888
Financial Services [Member] | Operating Segments [Member]
Revenues, Total		9,608		10,888
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total		$ 1,134		$ 2,547
[1] Corporate and unallocated for the three months ended January 31, 2019 included corporate general and administrative costs of $17.7 million, interest expense of $17.5 million (a component of Other interest on our Condensed Consolidated Statements of Operations) and $(0.8) million of other income and expenses primarily related to interest income and stock compensation. Corporate and unallocated for the three months ended January 31, 2018 included corporate general and administrative costs of $19.1 million, interest expense of $19.6 million (a component of Other interest on our Condensed Consolidated Statements of Operations) and $(3.9) million of other income and expenses primarily related to interest income, gain on the sale of our corporate headquarters building and stock compensation.

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