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SHAREHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Weighted Average Fair Value of Stock Options Granted and Total Intrinsic Value of Stock Options (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Weighted average fair value of stock options granted and total intrinsic value of stock options exercised |  |
Grant date fair value of stock options that vested | $ 1,203 | $ 2,730

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- Definition Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. + 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) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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