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STOCK-BASED COMPENSATION PLANS - Outstanding and exercisable number of stock options (Details) shares in Thousands | Dec. 31, 2020 shares
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Share-based Compensation Arrangement by Share-based Payment Award |
Outstanding Number of Options (in shares) | 1,006
Number of Shares, Exercisable | 575
2005 Stock Option Plan |
Share-based Compensation Arrangement by Share-based Payment Award |
Outstanding Number of Options (in shares) | 299
Number of Shares, Exercisable | 299
Equity Compensation Plans not approved by Shareholders |
Share-based Compensation Arrangement by Share-based Payment Award |
Outstanding Number of Options (in shares) | 37
Number of Shares, Exercisable | 25
2017 Stock Option Plan |
Share-based Compensation Arrangement by Share-based Payment Award |
Outstanding Number of Options (in shares) | 670
Number of Shares, Exercisable | 251

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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