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Stock-based compensation | 3 Months Ended
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Apr. 30, 2015
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,
| 2015 |  | 2014 |
Stock-based compensation expense (benefit) |  | $59 |  |  | ($381 | )
Restricted stock based compensation expense (benefit) |  | $89 |  |  | ($69 | )
Stock-based compensation for 2014 was a benefit year-to-date due to cancellations. Most of these cancellations related to former employees from the discontinued operations. 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 | 2015 | 2014
Risk free interest rate | .74% - 1.77% | .74% - 2.19%
Expected volatility | 40.88% - 59.39% | 42.12% - 60.26%
Expected life | 4.9 - 5.1 years | 4.9 - 5.7 years
Dividend yield | none | none
Option activity | Options | Weighted Average Exercise Price | Weighted Average Remaining Contractual Term | Aggregate Intrinsic Value
Outstanding at January 31, 2015 | 764 |  |  | $11.45 |  | 5.7 |  | $— |
Expired or forfeited | (15 | ) | 12.95 |  |  |
Outstanding end of period | 749 |  | 11.42 |  | 5.4 | 4 |
Exercisable end of period | 527 |  |  | $11.98 |  | 4.3 |  | $2 |
Unvested option activity | Options | Weighted Average Grant Date Fair Value | Aggregate Intrinsic Value
Outstanding at January 31, 2015 | 232 |  |  | $10.11 |  |  | $— |
Vested | (3 | ) |  |
Expired or forfeited | (7 | ) | 10.24 |  |
Outstanding end of period | 222 |  |  | $10.10 |  |  | $2 |
As of April 30, 2015, there was $0.7 million of total unrecognized compensation expense related to unvested stock options. The expense is expected to be recognized over a period of 2.1 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, 2015 | 33 |  |  | $11.53 |  |  | $186 |
Granted | — |  |  |  |
Issued | — |  |  |
Outstanding end of period | 33 |  |  | $11.53 |  |  | $198 |
As of April 30, 2015, there was $0.4 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 1.5 years.

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- 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 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: 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 3: 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=6406099&loc=d3e25284-112666 Reference 4: 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 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
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