XML 17 R28.htm IDEA: XBRL DOCUMENT v2.4.1.9

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal net operating loss carryforwards will begin to expire	Sep. 30, 2018
State net operating loss carryforwards will begin to expire	Sep. 30, 2014
Deferred tax valuation allowance, percentage	100.00%mitk_DeferredTaxValuationAllowanceNetOfAssetsPercentage
Accrued interest	$ 0us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued	$ 0us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued
Recognized income tax interest and/or penalties	$ 0us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense	$ 0us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense

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

- Definition

State Net Operating Loss Carryforwards Expiry Period Beginning Date

+ References

No definition available.

+ Details

Name:	mitk_StateNetOperatingLossCarryforwardsExpiryPeriodBeginningDate
Namespace Prefix:	mitk_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

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

The sum of the amounts of estimated penalties and interest recognized in the period 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_IncomeTaxExaminationPenaltiesAndInterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

+ Details

Name:	us-gaap_OperatingLossCarryforwardsExpirationDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration