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SHARE-BASED COMPENSATION - Options to Employees (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended | 36 Months Ended
--- | --- | --- | ---
Sep. 30, 2010 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2021
SHARE-BASED COMPENSATION |  |  |  |  |
Maximum aggregate number of shares to be issued | 2,330,000 |  |  |  |
Annual percentage increase in authorized shares on the first day of each of 2007, 2008 and 2009 prior to the year of amendment for awards other than incentive option shares | 1.00% |  |  |  |
Annual percentage increase in authorized shares on the first day of each calendar year from the year of amendment for awards other than incentive option shares | 2.50% |  |  |  |
Number of shares to be granted after expiration |  | 0 |  |  |
Expiry term of share options |  | 10 years |  |  |
Compensation cost |  | $ 0 | $ 0 |  | $ 0
Options | Employees |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |
Option exercised |  | 0 |  |  |
Total intrinsic value of options exercised (in dollars) |  |  | $ 893 | $ 1,422 |
Options outstanding |  | 26,291 |  |  | 26,291
Weighted average exercise price of options outstanding (in dollars per share) |  | $ 9.33 |  |  | $ 9.33
Weighted average remaining contract terms of options outstanding (in years) |  | 1 year 4 months 24 days |  |  |
Intrinsic value of outstanding options (in dollars) |  | $ 577 |  |  | $ 577

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- Definition Represents the annual percentage increase in authorized shares on the first business day of each calendar year from the year of amendment for awards other than incentive option shares. + References No definition available. + Details
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- Definition Represents the annual percentage increase in authorized shares on the first business day of each of 2007, 2008 and 2009 prior to the year of amendment for awards other than incentive option shares. + References No definition available. + Details
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- Definition Represents the number of awards that may be granted under the share incentive plan after the expiration date of May 8, 2021. + References No definition available. + Details
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- Definition Represents the expiry term of share options from the date of grant, granted under the share incentive plan. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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