Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Apr. 30, 2023	Oct. 31, 2022
Accounts Receivable, Allowance for Credit Loss, Current	$ 237	$ 126
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	10,290,377	10,193,287
Common stock, shares outstanding (in shares)	10,290,377	10,193,287