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Stockholders Equity - Number of Stock Options Outstanding Under Prior Plans (Detail) | Jun. 30, 2013
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding | 1,612,222
2000 Stock Option Plan [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding | 215,412
2002 Stock Option Plan [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding | 226,100
2006 Stock Option Plan [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding | 49,000
2010 Stock Option Plan [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding | 1,121,710

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- Definition Share based compensation arrangement by share based payment award options outstanding under prior plans number. + References No definition available. + Details
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Namespace Prefix: | mitk_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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