XML 38 R16.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) | Mar. 31, 2015 Institution Patents | Sep. 30, 2014 | Mar. 31, 2014
--- | --- | --- | ---
Accounting Policies [Abstract] |  |  |
Number of patents granted | 21mitk_NumberOfPatentsGranted |  |
Number of patent applications pending | 21mitk_NumberOfPendingPatentApplications |  |
Number of financial institutions signed agreements to deploy mobile deposit | 3,705mitk_NumberOfFinancialInstitutionsThatSignedAgreement |  |
Number of financial institutions deployed mobile deposit | 3,181mitk_NumberOfFinancialInstitutionsThatDeployedSoftware |  |
Number of U.S. retail banks and payment processing companies | 50mitk_NumberOfDomesticRetailBanksAndPaymentProcessingCompanies |  |
Software development costs capitalized | $ 0us-gaap_CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomers |  | $ 0us-gaap_CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomers
Accumulated other comprehensive gain (loss) | $ (13,664)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax | $ (7,810)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax |

X
- Definition Number of domestic retail banks and payment processing companies. + References No definition available. + Details
Name: | mitk_NumberOfDomesticRetailBanksAndPaymentProcessingCompanies
Namespace Prefix: | mitk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of financial institutions that deployed software. + References No definition available. + Details
Name: | mitk_NumberOfFinancialInstitutionsThatDeployedSoftware
Namespace Prefix: | mitk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of financial institutions that signed agreement. + References No definition available. + Details
Name: | mitk_NumberOfFinancialInstitutionsThatSignedAgreement
Namespace Prefix: | mitk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of patents granted. + References No definition available. + Details
Name: | mitk_NumberOfPatentsGranted
Namespace Prefix: | mitk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of pending patent applications. + References No definition available. + Details
Name: | mitk_NumberOfPendingPatentApplications
Namespace Prefix: | mitk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unamortized costs incurred for development of computer software, which is to be sold, leased or otherwise marketed, after establishing technological feasibility through to the general release of the software products. Excludes capitalized costs of developing software for internal use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
Name: | us-gaap_CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomers
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant