Accrued expenses (Detail) - USD ($) $ in Thousands	Jul. 31, 2016	Oct. 31, 2015
Schedule of Accrued Liabilities [Line Items]
Wages payable	$ 844	$ 978
Accrued receipts	492	438
Earn-out liabilities	869	1,150
Other current liabilities	335	302
Totals	$ 2,540	$ 2,868