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Commitments and Contingencies (Details) - Schedule of lease-related assets and liabilities - USD ($) $ in Thousands | Dec. 31, 2024 | Mar. 31, 2024
--- | --- | ---
Liabilities |  |
Total Operating Lease Liabilities | $ 531 | $ 863
Operating lease right-of-use asset [Member] |  |
Assets |  |
Noncurrent | 502 | 834
Operating leases liabilities [Member] |  |
Liabilities |  |
Current | 207 | 401
Operating leases liabilities, net of current [Member] |  |
Liabilities |  |
Noncurrent | $ 324 | $ 462

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- Definition Operating lease liabilities. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of lessee's right to use underlying asset under operating lease. + References No definition available. + Details
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Namespace Prefix: | cnvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. + References No definition available. + Details
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Namespace Prefix: | cnvs_
Data Type: | xbrli:monetaryItemType
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. + References No definition available. + Details
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Namespace Prefix: | cnvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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- Details
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