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Significant Accounting Policies (Details) - Schedule of exchange rate of relevant currencies - $ / shares | Dec. 31, 2021 | Dec. 31, 2020
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Year-end AUD 1 = USD [Member] |  |
Significant Accounting Policies (Details) - Schedule of exchange rate of relevant currencies [Line Items] |  |
Currencies | $ 0.726 | $ 0.77
Currencies percentage | (6.00%) | 10.00%
Average AUD 1 = USD [Member] |  |
Significant Accounting Policies (Details) - Schedule of exchange rate of relevant currencies [Line Items] |  |
Currencies | $ 0.751 | $ 0.691
Currencies percentage | 9.00% | (1.00%)

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- Definition Foreign exchange rate used to translate percentage denominated in functional currency to reporting currency. + References No definition available. + Details
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Namespace Prefix: | migi_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. + References No definition available. + Details
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Namespace Prefix: | migi_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | migi_
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Balance Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | migi_TypeOfCurrenciesAxis=migi_AverageUSD1AUDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |