Income Taxes, (As Restated for fiscal 2014 and 2013) - Schedule of Reconciliation of U.S. Federal statutory Income Tax Rate to Effective Income Tax Rate on Earnings (Details)	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Income Tax Disclosure [Abstract]
Statutory U.S. federal income tax rate - provision (benefit)	(35.00%)	(35.00%)	(35.00%)
State and local income taxes, net of U.S. federal income tax effect	16.20%	11.40%	(6.80%)
Changes in state income tax rates	19.00%	(0.70%)	(21.50%)
Reserve adjustments	2.20%	(0.80%)	4.10%
Valuation allowance adjustments	0.00%	0.30%	(501.30%)
Rescindable common stock interest and realized losses (gains)	0.00%	0.90%	(1.00%)
Non-deductible convertible subordinated notes interest	8.00%	7.00%	7.90%
Non-deductible premiums on repurchase of convertible subordinated notes	0.00%	64.10%	4.80%
Research credits	(0.00%)	4.00%	(3.40%)
Retroactive change in federal tax law	(11.60%)	0.00%	(3.90%)
Benefit of manufacturing deductions	(5.80%)	(4.30%)	(0.80%)
Lobbying costs	3.60%	1.00%	0.90%
Other, net	5.20%	1.50%	0.30%
Effective income tax rate - provision (benefit)	1.80%	49.40%	(555.70%)