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Commitments and contingencies - Additional information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Lessee, Lease, Description [Line Items]
Finance Lease Costs	$ 607	$ 607	$ 1,214	$ 1,214
Operating lease costs	252	245	511	487
Minimum payments committed to manufacturing organization	1,209		1,209		$ 1,951
Research and development
Lessee, Lease, Description [Line Items]
Finance Lease Costs	518	518	1,035	1,035
Operating lease costs	103	95	213	189
Selling, general and administrative
Lessee, Lease, Description [Line Items]
Finance Lease Costs	89	89	179	179
Operating lease costs	$ 149	$ 150	$ 298	$ 298

X

- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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- 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.

+ References

No definition available.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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- Definition

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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