Inventory (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended						6 Months Ended		12 Months Ended
	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Apr. 30, 2014	Apr. 30, 2013	Oct. 31, 2013
Schedule Of Inventory [Line Items]
Inventory Write-down	$ 1,924				$ 1,029		$ 3,906	$ 1,738
Land controlled for future communities [Member]
Schedule Of Inventory [Line Items]
Inventory Write-down	324				689		1,006	698
Land Owned for Future Communities [Member]
Schedule Of Inventory [Line Items]
Inventory Write-down	0				0		0	0
Operating communities [Member]
Schedule Of Inventory [Line Items]
Inventory Write-down	$ 1,600	$ 1,300	$ 2,200	$ 100	$ 340	$ 700	$ 2,900	$ 1,040	$ 3,340