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Earnings (loss) per common share - Additional Information (Details) |  | 6 Months Ended
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May 06, 2022 | Jun. 30, 2022
Earnings Per Share [Abstract] |  |
Reverse stock split, conversion ratio | 0.02 | 0.02
Reverse stock split, description | outstanding shares of our common stock were split at a ratio of 50-for-1 | 50-for-1 reverse stock split

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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770 + Details
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- Definition Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 4.C) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770 + Details
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