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Revenue and Vendor Concentrations (Details) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Revenue and Vendor Concentrations (Textual) [Abstract]
Total revenue earned	$ 3,788,000	$ 3,385,000
Revenue and Vendor Concentrations (Additional Textual) [Abstract]
Accounts receivables balances	675,000	840,000
Payments to acquire components from vendor	$ 0
Percentage of vendor comprising of total purchases	10.00%	13.00%
International sales [Member]
Revenue and Vendor Concentrations (Textual) [Abstract]
Total revenue, percentage	5.00%	12.00%
Channel partners [Member]
Revenue and Vendor Concentrations (Textual) [Abstract]
Total revenue, percentage	10.00%	10.00%
Customers [Member]
Revenue and Vendor Concentrations (Textual) [Abstract]
Total revenue, percentage	10.00%	10.00%
Customer One [Member]
Revenue and Vendor Concentrations (Textual) [Abstract]
Total revenue, percentage	15.00%	22.00%
Customer Two [Member]
Revenue and Vendor Concentrations (Textual) [Abstract]
Total revenue, percentage	15.00%	11.00%
Customer Three [Member]
Revenue and Vendor Concentrations (Textual) [Abstract]
Total revenue, percentage	12.00%
Direct customer [Member]
Revenue and Vendor Concentrations (Textual) [Abstract]
Total revenue, percentage	10.00%

X

- Definition

Entity wide major customers accounts receivable net.

+ References

No definition available.

+ Details

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Namespace Prefix:	mitk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Payments to acquire raw materials and components.

+ References

No definition available.

+ Details

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Namespace Prefix:	mitk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Percentage of vendor comprising of overall purchases.

+ References

No definition available.

+ Details

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Namespace Prefix:	mitk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Details

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

X

- Definition

Amount of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 42

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 39

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

+ References

No definition available.

+ Details

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Balance Type:	na
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