Stock-based compensation and equity transactions (Tables)

3 Months Ended

Jan. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Computation of Weighted Average Fair Value of Employee Stock Options using Black-Scholes Option Pricing Model Assumptions

Black-Scholes option pricing model with the following assumptions:

	Three Months Ended January 31,
	2019			2018
Risk-free interest rate		2.98	%		1.87	%
Dividend yield		0.94	%		3.28	%
Expected life of the option		5.76 years			4.54 years
Volatility factor		55.64	%		46.83	%

Summary of Status of Options Granted under Stock Option Plans and Changes in Options Outstanding

A summary of the status of the options granted under the Company’s stock option plans as of January 31, 2019 and the changes in options outstanding during the three months then ended is presented in the table that follows:

				Weighted
				Average
	Shares			Exercise Price
Outstanding at November 1, 2018		942,366		$	3.09
Options granted		93,000		$	8.47
Options exercised		(65,734	)	$	5.20
Options canceled or expired		(5,250	)	$	6.82
Options outstanding at January 31, 2019		964,382		$	3.44
Options exercisable at January 31, 2019		632,799		$	2.92
Options vested and expected to vest at January 31, 2019		963,022		$	3.45