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Reverse Recapitalization - Reconciliation of elements of Merger to cash flows (Details) - Legacy SMAP $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($)
Reverse Recapitalization |
Cash (Trust) | $ 17,996
Redemptions | (16,430)
Less: fees to underwriters and advisors | (3,910)
Net cash due to Merger recapitalization | (2,344)
Issuance of Financing notes | 4,481
Net cash received from Financing transaction and Merger recapitalization | $ 2,137

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- Definition The amount of cash inflow through reverse recapitalization. + References No definition available. + Details
Name: | msai_CashAcquiredThroughReverseRecapitalization
Namespace Prefix: | msai_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of recapitalization costs for professional fees associated with restructuring debt and equity mixture that do not qualify for capitalization. + References No definition available. + Details
Name: | msai_DecreaseInRecapitalizationCosts
Namespace Prefix: | msai_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of net cash received due to Merger recapitalization. + References No definition available. + Details
Name: | msai_NetCashDueToMergerRecapitalization
Namespace Prefix: | msai_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of cash paid during the reporting period for redemption of shares. + References No definition available. + Details
Name: | msai_PaymentsForRedemptionOfSharesInReverseRecapitalization
Namespace Prefix: | msai_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow for issuance of financing notes in reverse recapitalization. + References No definition available. + Details
Name: | msai_PaymentsToAcquireFinancingNotesInReverseRecapitalization
Namespace Prefix: | msai_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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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. + Details
Name: | msai_RecapitalizationsAndRelatedCostsLineItems
Namespace Prefix: | msai_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net contributions from Business Combination and PIPE Financing + References No definition available. + Details
Name: | msai_ReverseRecapitalizationNet
Namespace Prefix: | msai_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_BusinessAcquisitionAxis=msai_SportsMapTechAcquisitionCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |