XML 29 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Summary of Significant Accounting Policies (Details Textual) (USD $) In Millions, unless otherwise specified |  |  | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 Minimum [Member] | Jun. 30, 2014 Maximum [Member] | Jun. 30, 2014 Building [Member] | Jun. 30, 2014 Construction Equipment [Member] Minimum [Member] | Jun. 30, 2014 Construction Equipment [Member] Maximum [Member] | Jun. 30, 2014 Transportation Equipment [Member] Minimum [Member] | Jun. 30, 2014 Transportation Equipment [Member] Maximum [Member] | Jun. 30, 2014 Office Equipment and Software [Member] Minimum [Member] | Jun. 30, 2014 Office Equipment and Software [Member] Maximum [Member]
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Depreciable life of office equipment and software |  |  |  |  | 40 years | 3 years | 15 years | 3 years | 5 years | 3 years | 10 years
Useful life of intangible assets |  |  | 1 year | 15 years |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |
Restricted cash | $ 0.3 | $ 0.3 |  |  |  |  |  |  |  |  |
Account receivables | 30.0 | 19.9 |  |  |  |  |  |  |  |  |
Other assets | 4.3 | 3.1 |  |  |  |  |  |  |  |  |
Accounts payable | $ 10.4 | $ 3.1 |  |  |  |  |  |  |  |  |

X
- Details
Name: | mtrx_SummaryOfSignificantAccountingPoliciesTextualAbstract
Namespace Prefix: | mtrx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract to be collected in the next fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph c -Article 5 + Details
Name: | us-gaap_ContractReceivableRetainageDueOneYearOrLess
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of billed or unbilled claims or other similar items subject to uncertainty concerning their determination or ultimate realization under long-term contracts that are expected to be collected after the next fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3(c)(3),(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph c(3), c(4) -Article 5 + Details
Name: | us-gaap_ContractsReceivableClaimsAndUncertainAmountsExpectedToBeCollectedAfterOneYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_RestrictedCashAndCashEquivalents
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amounts owed to vendors and subcontractors that have been withheld because of retainage provisions in a contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 910 -SubTopic 405 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6471548&loc=d3e50610-109371 + Details
Name: | us-gaap_RetentionPayable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant