Computation of basic and diluted earnings per share (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Numerators:
Consolidated net income	$ 994	$ 1,439
Denominators:
Weighted average shares outstanding for basic earnings per share (B)	8,494,111	8,215,688
Add effects of potentially dilutive securities - assumed exercise of stock options	368,106	526,337
Weighted average shares outstanding for diluted earnings per share (C)	8,862,217	8,742,025
Basic earnings per share (A)/(B)	$ 0.12	$ 0.18
Diluted earnings per share (A)/(C)	$ 0.11	$ 0.16