XML 46 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Income taxes Components of income tax (benefit) expense (Tables) | 12 Months Ended
--- | ---
Jan. 31, 2014
Income taxes [Abstract] |
Components of income tax (benefit) expense [Table Text Block] |
Components of income tax (benefit) expense |  |
Current |  |
Federal | ($245) | ($964)
Foreign | 3,024 |  | 229 |
State and other | (82 | ) | (34 | )
Subtotal | 2,697 |  | (769 | )
Deferred |  |
Federal | (2,715 | ) | 12,545 |
Foreign | (475 | ) | 466 |
State and other | — |  | (417 | )
Subtotal | (3,190 | ) | 12,594 |
Total | $(493) | $11,825
Effective income tax rate reconciliation[Table Text Block] |
| 2013 |  | 2012 |
Tax benefit at federal statutory rate | $4,182 | ($3,037)
Domestic valuation allowance | — |  | 12,975 |
Valuation allowance for state NOLs | — |  | 972 |
Differences in foreign tax rate | (3,049 | ) | 823 |
Foreign tax credit | — |  | (67 | )
Research tax credit | — |  | (46 | )
Valuation allowance for foreign NOLs | (1,209 | ) | 613 |
Nontaxable income from the Canadian joint venture | (179 | ) | (471 | )
State taxes, net of federal benefit | (192 | ) | (247 | )
All other, net expense | (46 | ) | 310 |
Total |  | ($493 | ) |  | $11,825 |

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

X
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
Name: | us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
Name: | us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration