Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jul. 31, 2022	Oct. 31, 2021
Trade accounts receivable, allowance for doubtful accounts	$ 124	$ 87
Common Stock, Shares Authorized (in shares)	20,000,000	20,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares, Issued (in shares)	10,156,191	10,058,571
Common Stock, Shares, Outstanding, Ending Balance (in shares)	10,156,191	10,058,571