Condensed Consolidated Balance Sheets (Unaudited Current Period) (Parentheticals) - $ / shares	Feb. 29, 2024	Nov. 30, 2023
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized (in shares)	500,000	500,000
Preferred Stock, Shares Issued (in shares)	0	0
Preferred Stock, Shares Outstanding (in shares)	0	0
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)	9,500,000	9,500,000
Common Stock, Shares, Issued (in shares)	5,180,922	5,106,922
Treasury stock, shares (in shares)	112,714	94,256