Stock option plan (Tables)

6 Months Ended

Apr. 30, 2015

Stock option plan [Abstract]

Schedule of Stock Option Activity

	Six Months Ended April 30,
	2015
	No. of Options		Exercise
	Outstanding		Price
Options outstanding beginning of period		246,000	$	18.45
Options granted during period		—		—
Options outstanding end of period		246,000	$	18.45
Options expected to vest		238,620
Options exercisable at end of period		—