Financial Services (Details) (USD $)	3 Months Ended
	Feb. 29, 2012	Feb. 28, 2011	Nov. 30, 2011
Financial services:
Insurance commissions	$ 1,600,000	$ 1,253,000
Title services	386,000	384,000
Marketing services fees	675,000
Interest income	2,000	2,000
Total	2,663,000	1,639,000
Expenses
Expenses	(835,000)	(865,000)
Operating income	1,828,000	774,000
Equity in income (loss) of unconsolidated joint venture	142,000	(149,000)
Financial services pretax income	1,970,000	625,000
Assets
Cash and cash equivalents	3,204,000		3,024,000
Receivables (a)	939,000		25,495,000
Investment in unconsolidated joint venture	3,781,000		3,639,000
Other assets	14,000		15,000
Financial services	7,938,000		32,173,000
Liabilities
Accounts payable and accrued expenses	6,105,000		7,494,000
Total liabilities	6,105,000		7,494,000
Financial Services (Textual) [Abstract]
Receivable from wind down of KBA Mortgage			$ 23,500,000