Note 8 - Stock-based Compensation and Equity Transactions (Tables)

6 Months Ended

Apr. 30, 2023

Notes Tables

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Six Months Ended April 30,
	2023			2022
Risk-free interest rate		3.76	%		1.23	%
Dividend yield		0.00	%		0.00	%
Expected life of the option (in years)	7.00			7.00
Volatility factor		54.30	%		53.35	%

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

				Weighted
				Average
	Shares			Exercise Price
Outstanding at November 1, 2022		691,005		$	5.87
Options granted		158,181		$	5.46
Options exercised		(45,000	)	$	1.90
Options cancelled		-		$	-
Options outstanding at April 30, 2023		804,186		$	6.01
Options exercisable at April 30, 2023		405,840		$	6.68
Options vested and expected to vest at April 30, 2023		798,697		$	6.02