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Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Contract liabilities totalated	$ 0.2	$ 0.7

X

- Definition

Contract liabalities totalated.

+ References

No definition available.

+ Details

Name:	mtus_ContractLiabalitiesTotalated
Namespace Prefix:	mtus_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration