Subsequent events	6 Months Ended
Jun. 30, 2023
Subsequent events
Subsequent events	9. Subsequent events On July 3, 2023, the Company received notification from the Nasdaq Listing Qualifications Department of the Nasdaq Stock Market (the “Nasdaq”) that the Company’s application to transfer the listing of its common stock from the Nasdaq Global Select Market to the Nasdaq Capital Market was approved. The Company’s securities were transferred to the Nasdaq Capital Market at the opening of business on July 6, 2023.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI https://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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