Geographic, product and industry information - By Industry (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenue	$ 54,243	$ 42,018
Industrial chemicals/materials
Segment Reporting Information [Line Items]
Revenue	13,575	12,526
Academic research
Segment Reporting Information [Line Items]
Revenue	10,015	7,887
Healthcare
Segment Reporting Information [Line Items]
Revenue	30,013	21,053
Food/agricultural
Segment Reporting Information [Line Items]
Revenue	$ 640	$ 552

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details