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CONDENSED BALANCE SHEETS (Parenthetical) - $ / shares
shares in Thousands
Aug. 28, 2021
Nov. 30, 2020
Statement of Financial Position [Abstract]    
Common Stock, Par or Stated Value Per Share $ 0.10 $ 0.10
Common Stock, Shares Authorized 10,000,000 10,000,000
Common Stock, Shares, Issued 3,078,315 3,078,315
Common Stock, Shares, Outstanding 2,578,315 2,578,315
Treasury Stock, Shares 500,000 500,000