XML 26 R15.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Stock-based compensation | 3 Months Ended
--- | ---
Apr. 30, 2016
Stock-based compensation [Abstract] |
Stock-based compensation [Text Block] | Stock-based compensation. The Company has stock-based compensation awards that can be granted to eligible employees, officers or directors.
| Three Months Ended April 30,
| 2016 |  | 2015 |
Stock-based compensation (benefit) expense |  | ($2 | ) |  | $59 |
Restricted stock based compensation expense |  | $390 |  |  | $89 |
Stock-based compensation for 2016 was a benefit year-to-date due to cancellations. Most of these cancellations related to former employees from the Company's discontinued operations. The increase in the restricted stock based compensation expense relates to a grant in March 2016 and the conversion of performance restricted stock units to time-based restricted shares. This increase is partially offset by a decrease in management incentive compensation expense. Stock Options The fair value of the outstanding option awards was estimated on the grant dates using the Black-Scholes option pricing model.
| Three Months Ended April 30,
Fair value assumptions | 2016 | 2015
Expected volatility | 40.88% - 57.02% | 40.88% - 59.39%
Risk free interest rate | .74% - 1.77% | .74% - 1.77%
Dividend yield | none | none
Expected life | 5.0 - 5.1 years | 4.9 - 5.1 years
Option activity | Options | Weighted Average Exercise Price | Weighted Average Remaining Contractual Term | Aggregate Intrinsic Value
Outstanding at January 31, 2016 | 720 |  |  | $11.38 |  | 5.1 |  | $34 |
Expired or forfeited | (42 | ) | 9.63 |  |  |
Outstanding end of period | 678 |  | 11.49 |  | 4.7 | 118 |
Exercisable end of period | 535 |  |  | $12.00 |  | 3.9 |  | $92 |
Unvested option activity | Options | Weighted Average Grant Date Fair Value | Aggregate Intrinsic Value
Outstanding at January 31, 2016 | 166 |  |  | $9.51 |  |  | $— |
Vested | (2 | ) |  |
Expired or forfeited | (21 | ) | 9.07 |  |
Outstanding end of period | 143 |  |  | $9.57 |  |  | $— |
As of April 30, 2016, there was $0.4 million of total unrecognized compensation expense related to unvested stock options. The expense is expected to be recognized over a period of 1.8 years. Restricted stock The following table summarizes restricted stock activity for the year:
Restricted stock activity | Restricted Shares | Weighted Average Grant Price Per Share | Aggregate Intrinsic Value
Outstanding at January 31, 2016 | 163 |  |  | $8.60 |  |  | $1,040 |
Granted | 90 |  | 7.25 |  |
Issued | (10 | ) |  |
Forfeited | (1 | ) | 6.38 |  |
Outstanding end of period | 242 |  |  | $8.17 |  |  | $1,686 |
As of April 30, 2016, there was $0.8 million of unrecognized compensation expense related to unvested restricted stock granted under the plans. The cost is expected to be recognized over the weighted-average period of 2.4 years.

X
- Definition Stock-based compensation [Abstract] + References No definition available. + Details
Name: | mfri_StockBasedCompensationAbstract
Namespace Prefix: | mfri_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51659978&loc=d3e25284-112666 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration