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Concentrations - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jan. 31, 2015 Customer | Jan. 31, 2014 Customer
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items] |  |
Minimum rate of consolidated accounts receivable | 10.00%mind_EntityWideAccountsReceivableMajorCustomerPercentage | 10.00%mind_EntityWideAccountsReceivableMajorCustomerPercentage
Foreign bank deposits | 3,700 us-gaap_DepositsForeign |
Number of suppliers manufacture land based seismic systems and equipment in use | 2 mind_NumberOfSuppliersManufactureLandBasedSeismicSystemsAndEquipmentInUse |
Credit Risk [Member] |  |
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items] |  |
Concentration risk number Of customer | 3 mind_ConcentrationRiskNumberOfCustomer / us-gaap_ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRiskAxis = us-gaap_CreditRiskMember | 1 mind_ConcentrationRiskNumberOfCustomer / us-gaap_ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRiskAxis = us-gaap_CreditRiskMember
Major Customer [Member] | Credit Risk [Member] |  |
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items] |  |
Aggregate amount of accounts receivable from customers | 11,300 mind_AccountsReceivableMajorCustomers / us-gaap_MajorCustomersAxis = mind_MajorCustomerMember / us-gaap_ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRiskAxis = us-gaap_CreditRiskMember |
One Major Customer [Member] | Credit Risk [Member] |  |
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items] |  |
Aggregate amount of accounts receivable from customers |  | 3,100 mind_AccountsReceivableMajorCustomers / us-gaap_MajorCustomersAxis = mind_OneMajorCustomerMember / us-gaap_ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRiskAxis = us-gaap_CreditRiskMember

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- Definition Amounts due from major customers (those exceeding 10% of consolidated accounts receivable). + References No definition available. + Details
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- Definition Concentration Risk Number Of Customer + References No definition available. + Details
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- Definition Entity wide accounts receivable major customer percentage. + References No definition available. + Details
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- Definition Number of suppliers manufacture land based seismic systems and equipment in use. + References No definition available. + Details
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- Definition The aggregate of all foreign interest-bearing and noninterest-bearing deposit liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-05(a)) -URI http://asc.fasb.org/extlink&oid=6882215&loc=d3e537907-122884 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Subparagraph a -Article 9 + Details
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