Summary of Business and Significant Accounting Policies - Activity Related to Allowance for Doubtful Accounts (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Jan. 31, 2017 |
Jan. 31, 2016 |
Jan. 31, 2015 |
|
Receivables [Abstract] | |||
Balance at beginning of period | $ 542 | $ 413 | $ 305 |
Add: charges to costs and expenses | 130 | 201 | 227 |
Less: (write-offs) | (13) | (72) | (119) |
Balance at end of period | $ 659 | $ 542 | $ 413 |
X | ||||||||||
- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- References No definition available.
|