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

6 Months Ended

Apr. 30, 2020

Notes Tables

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

	Six Months Ended April 30,
	2020			2019
Risk-free interest rate		1.57	%		2.88	%
Dividend yield		1.23	%		0.98	%
Expected life of the option (in years)		6.47			5.96
Volatility factor		49.14	%		55.25	%

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

				Weighted
				Average
	Shares			Exercise Price
Outstanding at November 1, 2019		890,147		$	3.62
Options granted		130,241		$	6.53
Options exercised		(228,870	)	$	1.85
Options outstanding at April 30, 2020		791,518		$	4.61
Options exercisable at April 30, 2020		419,352		$	4.37
Options vested and expected to vest at April 30, 2020		790,482		$	4.62