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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2020
Valuation and Qualifying Accounts |
Valuation and Qualifying Accounts | SCHEDULE II ONESPAN INC. VALUATION AND QUALIFYING ACCOUNTS Credit losses for trade receivables. ​
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​ | ​ | ​ | ​ | ​ | Provision | ​ | ​ | ​ | Foreign | ​ | ​ | ​
​ | ​ | Beginning | ​ | for Bad | ​ | ​ | ​ | Currency | ​ | Ending
For the year ended December 31, |  | Balance |  | Debts |  | Chargeoffs |  | Translation |  | Balance
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2020 | ​ | $ | 2,812 | (1) | 2,306 |  | (994) |  | 11 | ​ | $ | 4,135
2019 | ​ | $ | 1,152 |  | 2,215 |  | (843) |  | — | ​ | $ | 2,524
2018 | ​ | $ | 520 |  | 871 |  | (239) |  | — | ​ | $ | 1,152
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| (1) | Includes the $288 impact of the initial ASU 2016-13 adoption on January 1, 2020.
​ See accompanying independent auditors’ report.

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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=26873400&loc=d3e24092-122690 + Details
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