Equity incentive plan (Tables)

6 Months Ended

Apr. 30, 2023

Equity Incentive Plan [Abstract]

Schedule of Stock Option Activity

	Six Months Ended April 30,						Three Months Ended April 30,
	2023						2023
	No. of Options			Weighted Average			No. of Options			Weighted Average
	Outstanding			Price			Outstanding			Price
Options outstanding at beginning of period		126,140		$	10.64			13,240		$	8.74
Options granted during period		—			—			—			—
Options forfeited/cancelled during period		—			—			—			—
Options exercised during period		(113,900	)		(10.83	)		(1,000	)		(7.50	)
Options outstanding at end of period		12,240		$	8.84			12,240		$	8.84
Options vested and expected to vest		11,100						11,100
Options exercisable at end of period		3,640						3,640

	Six and Three Months Ended April 30, 2022
	No. of Options		Weighted Average
	Outstanding		Price
Options outstanding at beginning of period		310,740	$	18.35
Options granted during period		—		—
Options forfeited/cancelled during period		—		—
Options exercised during period		—		—
Options outstanding at end of period		310,740	$	18.35
Options vested and expected to vest		309,450
Options exercisable at end of period		293,540