Accrued expenses and other long-term liabilities (Detail) - USD ($) $ in Thousands	Jan. 31, 2018	Oct. 31, 2017
Schedule Of Accrued Liabilities [Line Items]
Wages payable	$ 935	$ 855
Accrued receipts	1,036	695
Earn-out liability	206	236
Other current liabilities	520	456
Totals	$ 2,697	$ 2,242