Note 7 - Stock-based Compensation and Equity Transactions (Tables)

3 Months Ended

Jan. 31, 2021

Notes Tables

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

	Three Months Ended January 31,
	2021			2020
Risk-free interest rate		0.39	%		1.57	%
Dividend yield		0.00	%		1.23	%
Expected life of the option (in years)		7.00			6.47
Volatility factor		51.94	%		49.14	%

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

				Weighted
				Average
	Shares			Exercise Price
Outstanding at November 1, 2020		789,179		$	4.66
Options granted		67,000		$	4.98
Options exercised		(118,189	)	$	3.26
Options cancelled		(91,793	)	$	5.88
Options outstanding at January 31, 2021		646,197		$	4.78
Options exercisable at January 31, 2021		298,781		$	4.85
Options vested and expected to vest at January 31, 2021		645,861		$	4.78