Legal Matters (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended		1 Months Ended		12 Months Ended
	Nov. 30, 2011	Nov. 30, 2011 Nevada Development Contract Litigation [Member] ac	Dec. 27, 2011 KB Home Coastal Inc. et al adv. Estancia Coastal [Member]	Nov. 30, 2011 KB Home Coastal Inc. et al adv. Estancia Coastal [Member]	Nov. 30, 2011 Maximum [Member] Nevada Development Contract Litigation [Member]	Nov. 30, 2011 Maximum [Member] KB Home Coastal Inc. et al adv. Estancia Coastal [Member]	Nov. 30, 2011 Minimum [Member] Nevada Development Contract Litigation [Member]	Nov. 30, 2011 Minimum [Member] KB Home Coastal Inc. et al adv. Estancia Coastal [Member]
Legal Matters (Textual) [Abstract]
Acres of purchased land by LVDA		83
Expected compensatory damages			$ 9.8		$ 0	$ 12.0	$ 0	$ 4.0
Accrual for compensatory damage				4.0
Minimum compensatory damages sought by plaintiffs	$ 55