Accounts Receivables, Contract Assets, and Contract Liabilities - Schedule of Changes in Deferred Revenue (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
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Apr. 30, 2021 |
Jan. 31, 2021 |
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| Deferred Revenue, Current [Member] | ||
| Accounts Notes And Loans Receivable [Line Items] | ||
| Balance | $ 5,165 | $ 4,737 |
| Increase (decrease) | 428 | |
| Deferred Revenue, Long-Term [Member] | ||
| Accounts Notes And Loans Receivable [Line Items] | ||
| Balance | 444 | $ 657 |
| Increase (decrease) | $ (213) |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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