Debt instrument required liquidity.

No definition available.

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Balance Type:	debit
Period Type:	duration

- Definition

Increase decrease in thresholds revenue percentage in first quarter.

+ References

No definition available.

+ Details

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- Definition

Increase decrease in thresholds revenue percentage in fourth quarter.

+ References

No definition available.

+ Details

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- Definition

Increase decrease in thresholds revenue percentage in second quarter.

+ References

No definition available.

+ Details

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- Definition

Increase decrease in thresholds revenue percentage in third quarter.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Line of credit facility additional borrowing capacity.

+ References

No definition available.

+ Details

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Namespace Prefix:	matr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility reserve amount.

+ References

No definition available.

+ Details

Name:	matr_LineOfCreditFacilityReserveAmount
Namespace Prefix:	matr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Non refundable amendment fee.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Name Accounting Standards Codification
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-Section S99
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-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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

- Definition

Average amount borrowed under the credit facility during the period.

+ References

No definition available.

+ Details

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

- Definition

Description of the credit facility's borrowing capacity including discussion of how the borrowing capacity is determined (for example, borrowing capacity based on the amount of current assets).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

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

- Definition

Date the credit facility first became available, in CCYY-MM-DD format.

+ References

+ Details

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

- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

+ References

+ Details

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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- Details

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- Details

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Period Type:

- Details

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Debt - Additional Information (Detail) - USD ($)				6 Months Ended
Debt - Additional Information (Detail) - USD ($)	Apr. 25, 2018	Mar. 29, 2018	Jun. 29, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018	Mar. 28, 2018
Line of Credit Facility [Line Items]
Amount issued against line of credit				$ 4,500,000	$ 13,500,000
CIBC [Member]
Line of Credit Facility [Line Items]
Increase in thresholds revenue percentage in first quarter		3.00%
Increase in thresholds revenue percentage in second quarter		3.00%
Decrease in thresholds revenue percentage in third quarter		6.00%
Decrease in thresholds revenue percentage in fourth quarter		6.00%
Non-refundable amendment fee		$ 100,000
CIBC [Member] \| LIBOR [Member]
Line of Credit Facility [Line Items]
Loans bearing interest rate		5.50%					4.50%
CIBC [Member] \| Base Rate [Member]
Line of Credit Facility [Line Items]
Loans bearing interest rate		2.75%					1.75%
CIBC [Member] \| Loan Agreement [Member]
Line of Credit Facility [Line Items]
Loan agreement, initiation date				Jun. 29, 2017
Maximum credit limit under revolving line of credit			$ 20,000,000
Loan agreement, expiration date				Jun. 29, 2020
Line of credit facility, interest rate description				The principal amount outstanding under the credit facility will accrue interest at a floating annual rate equal to 1 month, 2 month or 3 month LIBOR (as selected by the company) plus 5.50%, payable monthly.
Monthly payment interest rate			5.50%
Percentage of average unused portion of credit facility			0.25%
Line of credit facility, borrowing capacity, description				The amount the company may borrow under the credit facility is limited to five times the company’s monthly recurring revenue (as determined in accordance with the terms and conditions set forth in the loan agreement), multiplied by a dynamic churn factor that is based upon the ratio of recurring revenue retained in the prior twelve month period relative to the total amount of recurring revenue at the beginning of the period.
Average outstanding balance on revolving line of credit				$ 8,900,000
Reserve for revolving loan agreement						$ 5,000,000
Total availability under revolving line of credit						$ 15,000,000
Line of credit facility, outstanding amount				8,400,000
Line of credit facility, additional borrowing capacity				4,500,000
Amount issued against line of credit				$ 1,200,000
CIBC [Member] \| Amended Loan Agreement [Member]
Line of Credit Facility [Line Items]
Non-refundable amendment fee	$ 100,000
CIBC [Member] \| Amended Loan Agreement [Member] \| Minimum [Member]
Line of Credit Facility [Line Items]
Debt instrument required liquidity	$ 2,000,000