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Pension Plans (Details) (USD $)	12 Months Ended
Pension Plans (Details) (USD $)	Nov. 30, 2012 Employee	Nov. 30, 2011
Pension Plans (Textual)
Total outstanding amount due to PBGC including accrued interest	$ 1,821,464	$ 1,730,727
Number of employees covered under defined benefit plan	40
Pension expense	0	248,312
Contributions in defined contribution plan	$ 0	$ 0

This represents the current liability recognized in the balance sheet that is associated with the defined benefit pension plans.

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- Definition

The amount of pension benefit costs recognized during the period for (1) defined benefit plans and (2) defined contribution plans. For defined benefit plans, pension expense includes the following components: service cost, interest cost, expected return on plan assets, gain (loss) on plan assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. For defined contribution plans, the pension expense generally equals the firm's contribution to employees' accounts (if the firm contributes) during the period.

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