Investments in Unconsolidated Joint Ventures (Financial Information for Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		May 31, 2018	May 31, 2017	May 31, 2018	May 31, 2017	Nov. 30, 2017
Statements of operations of unconsolidated joint venture
Revenues		$ 7,827	$ 7,080	$ 16,624	$ 26,802
Construction and land costs		(7,839)	(6,898)	(16,655)	(24,793)
Other expenses, net		(611)	(1,157)	(1,983)	(2,253)
Income (loss)		(623)	$ (975)	(2,014)	$ (244)
Assets
Cash		17,237		17,237		$ 21,193
Receivables		226		226		688
Inventories		143,136		143,136		145,519
Other Assets		959		959		1,398
Total assets		161,558		161,558		168,798
Liabilities and equity
Accounts payable and other liabilities		22,744		22,744		25,426
Equity Method Investments Summarized Financial Information Debt	[1]	9,536		9,536		20,040
Equity		129,278		129,278		123,332
Total liabilities and equity		$ 161,558		$ 161,558		$ 168,798

[1] As of May 31, 2018 and November 30, 2017, two of our unconsolidated joint ventures had separate construction loan agreements with different third-party lenders to finance their respective land development activities. The outstanding debt under these agreements is secured by the corresponding underlying property and related project assets and is non-recourse to us. Of this outstanding secured debt at May 31, 2018, $9.1 million is scheduled to mature in August 2018 and the remainder is scheduled to mature in February 2020. None of our other unconsolidated joint ventures had outstanding debt at May 31, 2018 or November 30, 2017.