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Summary Financial Information Related to RF Neulink (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2013 | Jul. 31, 2012 | Jul. 31, 2013 | Jul. 31, 2012
Summary Financial Information Related to RF Neulink [Line Items] |  |  |  |
Net sales | $ 9,585 | $ 7,316 | $ 29,146 | $ 19,229
Cost of sales | 5,609 | 3,982 | 16,163 | 10,521
Gross profit (loss) | 3,976 | 3,334 | 12,983 | 8,708
Operating expenses | 2,420 | 2,173 | 7,549 | 6,427
Operating loss | 1,556 | 1,161 | 5,434 | 2,281
Provision for income taxes | 407 | 397 | 1,517 | 810
Loss from discontinued operations, net of tax | 238 | 40 | 354 | 52
RF Neulink |  |  |  |
Summary Financial Information Related to RF Neulink [Line Items] |  |  |  |
Net sales | 75 | 157 | 184 | 474
Cost of sales | 398 | 137 | 518 | 304
Gross profit (loss) | (323) | 20 | (334) | 170
Operating expenses | 71 | 87 | 246 | 256
Operating loss | (394) | (67) | (580) | (86)
Provision for income taxes | (156) | (27) | (226) | (34)
Loss from discontinued operations, net of tax | $ (238) | $ (40) | $ (354) | $ (52)

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