XML 88 R41.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Organization and Summary of Significant Accounting Policies - Restricted Stock and Options Outstanding Used in Per Share Calculations (Detail) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Jan. 31, 2015 | Jan. 31, 2014 | Jan. 31, 2013
Earnings Per Share, Basic and Diluted [Abstract] |  |  |
Stock options | 223 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 389 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 505 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Restricted stock | 26 mind_IncrementalCommonSharesAttributableToRestrictedStock | 25 mind_IncrementalCommonSharesAttributableToRestrictedStock | 22 mind_IncrementalCommonSharesAttributableToRestrictedStock
Total dilutive shares | 249 mind_DilutiveShares | 414 mind_DilutiveShares | 527 mind_DilutiveShares

X
- Definition Dilutive shares. + References No definition available. + Details
Name: | mind_DilutiveShares
Namespace Prefix: | mind_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Incremental common shares attributable to restricted stock. + References No definition available. + Details
Name: | mind_IncrementalCommonSharesAttributableToRestrictedStock
Namespace Prefix: | mind_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_EarningsPerShareBasicAndDilutedAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 28A -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1500-109256 + Details
Name: | us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration