XML 54 R30.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Costs and estimated earnings on uncompleted contracts Costs and estimated earnings on uncompleted contracts (Tables) | 12 Months Ended
--- | ---
Jan. 31, 2013
Costs and estimated earnings on uncompleted contracts [Abstract] |
Costs and estimated earnings on uncompleted contracts [Table Text Block] |
| 2012 |  | 2011 |
Costs incurred on uncompleted contracts | $71,382 | $61,938
Estimated earnings | 16,215 |  | 11,550 |
Earned revenue | 87,597 |  | 73,488 |
Less billings to date | 87,234 |  | 73,091 |
Costs in excess of billings, net | $363 | $397
Balance sheet classification |  |
Costs and estimated earnings in excess of billings on uncompleted contracts | $1,935 | $2,375
Billings in excess of costs and estimated earnings on uncompleted contracts | (1,572 | ) | (1,978 | )
Costs in excess of billings, net | $363 | $397

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

X
- Definition Tabular disclosure of the underlying assumptions and percentages or rates used in determining the fair value of guarantee obligations for each type of long-duration contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 03-1 -Paragraph 38 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6482852&loc=d3e14931-158439 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6588021&loc=d3e7104-158389 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 60 -Paragraph 60 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6481800&loc=d3e11318-158416 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6482852&loc=d3e14944-158439 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6482852&loc=d3e14937-158439 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 80 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6484115&loc=d3e19393-158473 + Details
Name: | us-gaap_ScheduleOfAssumptionsForLongDurationContractsByProductAndGuaranteeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration