XML 73 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]
Deferred tax valuation allowance, percentage	100.00%	100.00%
Income tax interest or penalties accrual	$ 0	$ 0	$ 0
Recognized income tax interest and/or penalties	$ 0	$ 0

X

- Definition

Deferred tax valuation allowance, net of assets percentage.

+ References

No definition available.

+ Details

Name:	mitk_DeferredTaxValuationAllowanceNetOfAssetsPercentage
Namespace Prefix:	mitk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

+ Details

Name:	us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

+ Details

Name:	us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration