Stock option plan (Tables)

3 Months Ended

Jan. 31, 2016

Stock option plan [Abstract]

Schedule of Stock Option Activity

	Three Months Ended January 31,
	2016
	No. of Options			Exercise
		Outstanding			Price
Options outstanding beginning of period		243,900		$	18.45
Options granted during period		—			—
Options forfeited/cancelled during period		(500	)	$	18.45
Options outstanding end of period		243,400		$	18.45
Options expected to vest		238,620
Options exercisable at end of period		48,680