ACCRUED RESTRUCTURING AND EXCESS FACILITIES COSTS (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	May 31, 2013
Restructuring Reserve [Roll Forward]
As of November 30, 2012	$ 1,536
Restructuring adjustments	(15)
Cash utilized	(529)
As of May 31, 2013	992
Accrued Facilities Restructuring
Restructuring Reserve [Roll Forward]
As of November 30, 2012	1,331
Restructuring adjustments	190
Cash utilized	(529)
As of May 31, 2013	992
Accrued Severance and Other
Restructuring Reserve [Roll Forward]
As of November 30, 2012	205
Restructuring adjustments	(205)
Cash utilized	0
As of May 31, 2013	$ 0