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v3.20.1

Commitments and Contingencies - Additional Information (Detail) $ in Thousands | Jan. 31, 2020 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
Purchase orders outstanding | $ 2,800
Customs and performance guarantees | $ 144

X
- Definition Customs And Performance Guarantees + References No definition available. + Details
Name: | mind_CustomsAndPerformanceGuarantees
Namespace Prefix: | mind_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant