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Investment securities - Equity Securities Portfolio (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Investment securities |  |
Equity investments carried at fair value | $ 144 | $ 140

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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740 + Details
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- References No definition available. + Details
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