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Sales and Major Customers - Summary of Company's Revenues from Customers by Geographic Region, Outside the U.S. (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Jan. 31, 2014 | Jan. 31, 2013 | Jan. 31, 2012
Sales Information [Line Items] |  |  |
Total revenues from customers | $ 80,422 | $ 81,317 | $ 86,676
Canada [Member] |  |  |
Sales Information [Line Items] |  |  |
Total revenues from customers | 13,113 | 13,744 | 13,243
UK and Europe [Member] |  |  |
Sales Information [Line Items] |  |  |
Total revenues from customers | 23,456 | 27,174 | 21,403
Latin America [Member] |  |  |
Sales Information [Line Items] |  |  |
Total revenues from customers | 7,529 | 15,575 | 17,786
Asia/South Pacific [Member] |  |  |
Sales Information [Line Items] |  |  |
Total revenues from customers | 25,256 | 14,173 | 17,810
Eurasia [Member] |  |  |
Sales Information [Line Items] |  |  |
Total revenues from customers | 6,810 | 4,052 | 3,528
Other [Member] |  |  |
Sales Information [Line Items] |  |  |
Total revenues from customers | $ 4,258 | $ 6,599 | $ 12,906

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- Definition Revenue from external customers. + References No definition available. + Details
Name: | mind_RevenueFromExternalCustomers
Namespace Prefix: | mind_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | mind_SalesInformationLineItems
Namespace Prefix: | mind_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration