Related party transactions - Additional Information (Detail) (USD $)	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012
Related Party Transaction [Line Items]
Note receivable from stockholder	$ 67,000	$ 67,000
Chief Executive Officer
Related Party Transaction [Line Items]
Note receivable from stockholder	67,000
Debt Instrument, Interest Rate During Period	6.00%
Former Director
Related Party Transaction [Line Items]
Cost of services, Total	$ 6,000	$ 43,000