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Income taxes - Additional Information (Details) $ in Millions | Dec. 31, 2021 USD ($)
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Discontinued Operations |
Operating Loss Carryforwards | $ 14.1
Domestic Tax Authority [Member] |
Operating Loss Carryforwards | 1.2
State and Local Jurisdiction [Member] |
Operating Loss Carryforwards | $ 1.1

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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