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Nature of the business and basis of presentation - Initial Public Offering (Details) $ / shares in Units, $ in Thousands				9 Months Ended
	Aug. 04, 2021 USD ($) $ / shares shares	Jul. 19, 2021 USD ($) $ / shares shares	Jul. 09, 2021	Sep. 30, 2021 USD ($)
Class of Stock [Line Items]
Gross proceeds				$ 165,453
Reverse stock split ratio			0.2
IPO
Class of Stock [Line Items]
Stock issued during period shares new issues | shares		7,920,000
Share issued, price per share | $ / shares		$ 20.00
Gross proceeds		$ 158,400
Net proceeds		$ 143,800
Over Allotment Option
Class of Stock [Line Items]
Stock issued during period shares new issues | shares	1,086,604
Share issued, price per share | $ / shares	$ 20.00
Net proceeds	$ 20,200

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