Income Taxes (Details) (USD $)	Nov. 30, 2012	Nov. 30, 2011
Deferred tax assets, net:
Net operating loss carryforwards	$ 9,840,000	$ 12,420,000
Allowance for doubtful accounts	10,000	20,000
Stock based compensation	120,000	120,000
Accrued pension	620,000	550,000
Interest	760,000	1,280,000
Other		110,000
Deferred tax assets, Gross	11,350,000	14,500,000
Valuation allowance	11,350,000	14,500,000
Net deferred assets