Revenue recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	May 25, 2025	Jun. 30, 2026	May 25, 2025
Segment Reporting [Line Items]
Revenues	$ 34,167	$ 36,444	$ 57,360	$ 71,598
Revenues recognized over time
Segment Reporting [Line Items]
Revenues	4,462	5,691	8,685	11,196
Revenues recognized at a point in time
Segment Reporting [Line Items]
Revenues	29,705	30,753	48,675	60,402
CDMO
Segment Reporting [Line Items]
Revenues	15,552	23,516	31,327	44,305
HA manufacturing
Segment Reporting [Line Items]
Revenues	$ 18,615	$ 12,928	$ 26,033	$ 27,293

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.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details