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Inventories (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Inventories |  |  |
Infrared cameras | $ 4,334 | $ 4,955 | $ 5,904
Replacement, maintenance, and spare parts | 1,230 | 1,975 | 3,730
Inventories, current | 5,564 | 6,930 | 9,634
Infrared cameras | 440 | 389 |
Replacement, maintenance, and spare parts | 1,104 | 254 |
Inventories, noncurrent | 1,544 | 643 |
Total inventories | 7,108 | 7,573 | 9,634
Impairment on inventories |  | 1,689 |
Inventory write down | $ 234 | $ 1,689 | $ 0

X
- Definition The amount of inventory of infrared cameras, current. + References No definition available. + Details
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Namespace Prefix: | msai_
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Balance Type: | debit
Period Type: | instant

X
- Definition The amount of inventory of infrared cameras, non-current. + References No definition available. + Details
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Balance Type: | debit
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X
- Definition The amount of inventory. + References No definition available. + Details
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- Definition The amount of replacement, maintenance and spare parts, current. + References No definition available. + Details
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- Definition The amount of replacement, maintenance and spare parts, non-current. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 852 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481372/852-10-55-10 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483467/210-10-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483080/330-10-50-2 + Details
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- Definition Nonrecurring impairment charges related to the write-off of production-related equipment and inventory. This tag is used when an Entity charges this cost to cost of goods sold. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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