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Stockholders Equity (Details 4)	Dec. 31, 2012
Number of stock options outstanding under prior plans
Options outstanding	2,300,408
2000 Stock Option Plan [Member]
Number of stock options outstanding under prior plans
Options outstanding	316,392
2002 Stock Option Plan [Member]
Number of stock options outstanding under prior plans
Options outstanding	243,163
2006 Stock Option Plan [Member]
Number of stock options outstanding under prior plans
Options outstanding	368,000
2010 Stock Option Plan [Member]
Number of stock options outstanding under prior plans
Options outstanding	1,372,853

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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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Balance Type:	na
Period Type:	instant

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- Details

Name:	mitk_StockOptionsOutstandingUnderPlansAbstract
Namespace Prefix:	mitk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration