Commitments and Contingencies (Details) $ in Thousands	12 Months Ended
Mar. 31, 2024 USD ($) Lease	Mar. 31, 2023 USD ($)
Commitments and Contingencies (Details) [Line Items]
Sublease term	2025-01
Sublease income \| $	$ 200
Average discount rate	3.34%
Rental expense \| $	$ 445	$ 441
Domestic Operating Lease
Commitments and Contingencies (Details) [Line Items]
Number of operating lease \| Lease	1
India Operations
Commitments and Contingencies (Details) [Line Items]
Number of operating lease \| Lease	2
Lease expiration	2027-07

Commitmentsand Contingencies Details Line Items

No definition available.

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Namespace Prefix:	cnvs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee operating lease expiration year and month.

+ References

No definition available.

+ Details

Name:	cnvs_LesseeOperatingLeaseExpirationYearAndMonth
Namespace Prefix:	cnvs_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee operating sublease term.

+ References

No definition available.

+ Details

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Namespace Prefix:	cnvs_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of operating lease.

+ References

No definition available.

+ Details

Name:	cnvs_NumberOfOperatingLease
Namespace Prefix:	cnvs_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of sublease income excluding finance and operating lease expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

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-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

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