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Stock-based compensation | 6 Months Ended
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Jul. 31, 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 July 31, | Six Months Ended July 31,
| 2016 |  | 2015 |  | 2016 |  | 2015 |
Stock-based compensation benefit |  | ($282 | ) |  | ($96 | ) |  | ($284 | ) |  | ($37 | )
Restricted stock based compensation expense |  | $390 |  |  | $169 |  |  | $668 |  |  | $258 |
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.
| Six Months Ended July 31,
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 |
Granted | 22 |  | 7.33 |  |  |
Exercised | (28 | ) | 6.50 |  |  | 26 |
Expired or forfeited | (110 | ) | 10.42 |  |  |
Outstanding end of period | 604 |  | 11.63 |  | 4.9 | 259 |
Exercisable end of period | 511 |  |  | $12.05 |  | 4.3 |  | $220 |
Unvested option activity | Options | Weighted Average Grant Date Fair Value | Aggregate Intrinsic Value
Outstanding at January 31, 2016 | 166 |  |  | $9.51 |  |  | $— |
Granted | 22 |  | 7.33 |  |
Vested | (60 | ) |  |
Expired or forfeited | (35 | ) | 8.99 |  |
Outstanding end of period | 93 |  |  | $9.33 |  |  | $39 |
As of July 31, 2016, there was $0.3 million of total unrecognized compensation expense related to unvested stock options. The expense is expected to be recognized over a period of 2.3 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 | 241 |  | 7.26 |  |
Issued | (94 | ) |  |
Forfeited | (1 | ) | 6.38 |  |
Outstanding end of period | 309 |  |  | $7.91 |  |  | $2,157 |
As of July 31, 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 2.9 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 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
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