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Commitments and Contingencies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||||
|---|---|---|---|---|---|
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Jan. 31, 2014
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Jan. 31, 2013
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Jan. 31, 2012
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Jan. 31, 2014
JP Morgan [Member]
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Nov. 28, 2013
JP Morgan [Member]
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| Contingencies And Commitments [Line Items] | |||||
| Demand notes payable | $ 20.0 | ||||
| Line of credit expiration date | Nov. 27, 2014 | ||||
| Operating leases, rent expense | $ 2.4 | $ 2.7 | $ 2.6 | ||
| Operating lease expiration year | 2017 | ||||
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Operating lease expiration year. No definition available.
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| X | ||||||||||
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- Definition
Date the credit facility terminates, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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