Consolidated Balance Sheet Detail - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||||
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Oct. 31, 2016 |
Oct. 31, 2015 |
Oct. 31, 2016 |
Oct. 31, 2015 |
Sep. 30, 2016 |
Aug. 31, 2016 |
Oct. 31, 2014 |
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Balance Sheet Related Disclosures [Abstract] | |||||||
Assets held for sale | $ 235 | $ 235 | $ 200 | $ 300 | $ 500 | ||
Loss on impairment of long-lived assets | 99 | 99 | |||||
Depreciation and amortization expense | $ 700 | $ 900 | $ 2,289 | $ 2,554 |
X | ||||||||||
- Definition Impairment Loss Of Long Lived Assets Held For Sale No definition available.
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X | ||||||||||
- Definition Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- References No definition available.
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X | ||||||||||
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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