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v3.23.3

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) |  |  |  |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 29, 2023 | Apr. 10, 2023 | Mar. 28, 2023 | Jan. 05, 2023 | Dec. 31, 2022 | May 31, 2022 | Jun. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Commitments And Contingencies |  |  |  |  |  |  |  |  |
Additional import tax charges |  |  |  |  |  | $ 338,701 |  | $ 954,616 | $ 793,941
Payment of fine |  |  |  |  |  |  |  | 78,991 | $ 394,029
Fine paid |  |  |  |  |  |  |  | 437,731 |
Charges on penalty |  |  |  | $ 3,342,549 |  |  |  | 3,342,549 |
Payment on additional fine |  |  |  |  |  |  | $ 3,342,549 | $ 3,342,549 |
Probability of import tax fine |  |  |  |  | $ 1,053,213 |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |
Commitments And Contingencies |  |  |  |  |  |  |  |  |
Additional import tax charges | $ 173,812 |  |  |  |  |  |  |  |
Payment of fine | 78,991 | $ 1,053,213 |  |  |  |  |  |  |
Fine paid | $ 0 |  |  |  |  |  |  |  |
Charges on penalty |  |  |  | $ 3,342,549 |  |  |  |  |
Payment on additional fine |  |  | $ 3,342,549 |  |  |  |  |  |

X
- Definition Represents the amount of additional import tax charges. + References No definition available. + Details
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Namespace Prefix: | mrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the amount charged on penalty. + References No definition available. + Details
Name: | mrt_ChargesOnPenalty
Namespace Prefix: | mrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Detail information about the commitment and contingencies. + References No definition available. + Details
Name: | mrt_CommitmentAndContingenciesDisclosureLineItems
Namespace Prefix: | mrt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of additional fine paid. + References No definition available. + Details
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Namespace Prefix: | mrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount of import tax fine incurred during the period. + References No definition available. + Details
Name: | mrt_ProbabilityOfImportTaxFine
Namespace Prefix: | mrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount awarded to other party in judgment or settlement of litigation. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |