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Note 8 - Notes Payable and Bank Credit Facility - Real Estate Notes Payable and Bank Debt (Details) - USD ($)
$ in Thousands
Aug. 26, 2017
Nov. 26, 2016
Unamortized Discount $ (32) $ (108)
Net Carrying Amount 3,900 7,111
Principal Balance, less current portion (3,405) (3,385)
Unamortized discount, current portion 32 95
Net Carrying Amount, less current portion (3,373) (3,290)
Principal Balance, excluding current portion 527 3,834
Unamortized discount, noncurrent portion (13)
Notes payable 527 3,821
Principal Balance 3,932 7,219
Net Carrying Amount, noncurrent   3,821
Zenith Note Payable [Member]    
Unamortized Discount (32) (108)
Net Carrying Amount 2,968 5,892
Principal Balance 3,000 6,000
Real Estate Notes Payable [Member]    
Net Carrying Amount 932 1,219
Principal Balance $ 932 $ 1,219