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Summary of Significant Accounting Policies - Inventory (Details) | Mar. 31, 2024 | Dec. 31, 2023
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Summary of Significant Accounting Policies |  |
Percentage of coverage count on a quarterly basis considered for inventory evaluation | 80.00% | 80.00%

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- Definition The percentage of coverage count on a quarterly basis considered for inventory evaluation. + References No definition available. + Details
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Namespace Prefix: | msai_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration