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Summary of Significant Accounting Policies (Details) - Schedule of digital currency - $ / shares | 3 Months Ended | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2022
Schedule of Digital Currency [Abstract] |  |
Opening number of Bitcoin held as at June 30, 2022 and December 31, 2021 | $ 2.21 | $ 0.92
Number of Bitcoin added | 282.99 | 1,231.26
Number of Bitcoin sold | (275.78) | (1,222.76)
Closing number of Bitcoin held as at September 30, 2022 | $ 9.42 | $ 9.42

X
- Definition Amount of additions of digital currencies. + References No definition available. + Details
Name: | migi_AdditionsOfDigitalCurrencies1
Namespace Prefix: | migi_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Digital currencies balance. + References No definition available. + Details
Name: | migi_DigitalCurrenciesBalance
Namespace Prefix: | migi_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Sale of digital currencies. + References No definition available. + Details
Name: | migi_SaleOfDigitalCurrencies1
Namespace Prefix: | migi_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | migi_ScheduleOfDigitalCurrencyAbstract
Namespace Prefix: | migi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration