Note 10 - Post Employment Benefit Obligations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Feb. 28, 2015	Nov. 29, 2014
Note 10 - Post Employment Benefit Obligations (Details) [Line Items]
Pension Expense	$ 54us-gaap_PensionExpense	$ 72us-gaap_PensionExpense
Postemployment Benefits Liability, Noncurrent	11,444	11,498
Unfunded Deferred Compensation Plan [Member]
Note 10 - Post Employment Benefit Obligations (Details) [Line Items]
Postemployment Benefits Liability, Noncurrent	2,137	2,174
Supplemental Employee Retirement Plan [Member]
Note 10 - Post Employment Benefit Obligations (Details) [Line Items]
Postemployment Benefits Liability	10,358	10,376
Postemployment Benefits Liability, Noncurrent	$ 9,634	$ 9,652

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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The carrying amount as of the balance sheet date of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement.

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