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Schedule II - Valuation and Qualifying Accounts and Reserves | 12 Months Ended
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Jan. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts and Reserves | SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS AND RESERVES
Description |  | Balance at Beginning of Year |  |  | Provision/ (Benefit) Charged to Operations |  |  | Deductions(2) |  |  | Balance at End of Year |
Allowance for Doubtful Accounts(1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |
Year Ended January 31, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2021 |  | $ | 856 |  |  | $ | 194 |  |  | $ | 4 |  |  | $ | 1,054 |
2020 |  | $ | 521 |  |  | $ | 546 |  |  | $ | (211 | ) |  | $ | 856 |
2019 |  | $ | 377 |  |  | $ | 310 |  |  | $ | (166 | ) |  | $ | 521 |
(1) | The allowance for doubtful accounts has been netted against accounts receivable in the balance sheets as of the respective balance sheet dates.
(2) | Uncollectible accounts written off, net of recoveries.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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