|
Severance and Other Restructuring Costs - Change in Severance Liability (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended |
|---|---|---|
|
Jul. 31, 2014
|
Jul. 31, 2014
|
|
| Restructuring And Related Activities [Abstract] | ||
| Accrual balance at the beginning of the period | $ 221 | $ 229 |
| Severance charges accrued | 218 | 692 |
| Severance costs paid | (226) | (708) |
| Accrual balance as of July 31, 2014 | $ 213 | $ 213 |
| X | ||||||||||
|
- Definition
Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|