XML 52 R34.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Cash surrender value on life insurance policies (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Apr. 30, 2015 | Apr. 30, 2014 | Jan. 31, 2015
Cash surrender value on life insurance policies [Abstract] |  |  |
Proceeds sourced from cash surrender value on life insurance policies | $ 1,916us-gaap_ProceedsFromLifeInsurancePolicies | $ 0us-gaap_ProceedsFromLifeInsurancePolicies |
Cash surrender value on life insurance policies | $ 1,406us-gaap_CashSurrenderValueOfLifeInsurance |  | $ 3,256us-gaap_CashSurrenderValueOfLifeInsurance

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

X
- Definition Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. + 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 210.5-02.17) -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 17 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765 + Details
Name: | us-gaap_CashSurrenderValueOfLifeInsurance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The cash inflow for proceeds from life insurance policies for which the entity is the beneficiary. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
Name: | us-gaap_ProceedsFromLifeInsurancePolicies
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration