Employee Benefit Plans - Components of the Change in Pension Benefit Obligation (Detail) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2018 |
Jan. 31, 2017 |
Jan. 31, 2016 |
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| Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract] | |||
| Projected benefit obligation, beginning of fiscal year | $ 530,000 | $ 1,063,000 | |
| Service cost | 238,000 | $ 288,000 | |
| Interest cost | 54,000 | 51,000 | |
| Actuarial gain | (801,000) | (435,000) | |
| Foreign currency exchange rate changes | (24,000) | ||
| Termination of the Plan | (530,000) | ||
| Projected benefit obligation, end of fiscal year | $ 0 | 530,000 | $ 1,063,000 |
| Funded status at end of fiscal year | $ 530,000 | ||
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- Definition Termination of defined benefit plan. No definition available.
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- References No definition available.
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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