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Deferred and restricted stock (Tables) | 12 Months Ended
--- | ---
Jan. 31, 2017
Restricted stock [Line Items] |
Deferred compensation expense [Table Text Block] |
| 2016 |  | 2015 |
Deferred compensation liabilities |  | $529 |  |  | $495 |
Schedule of restricted stock award activity [Table Text Block] |
| Restricted shares |  | Weighted average grant price |  | Aggregate intrinsic value |
Outstanding on January 31, 2015 | 86 |  |  | $14.52 |  |  | $1,242 |
Granted | 108 |  | 6.38 |  |
Issued | (26 | ) |  |
Forfeited | (5 | ) | 6.38 |  |
Outstanding on January 31, 2016 | 163 |  |  | $6.40 |  |  | $1,040 |
Granted | 254 |  | 7.29 |  |
Issued | (91 | ) |  |
Forfeited or used to cover payroll taxes | (36 | ) | 7.75 |  |
Outstanding on January 31, 2017 | 290 |  |  | $8.75 |  |  | $2,540 |

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- Definition Tabular disclosure of pension and other postretirement benefit arrangements with individual employees, which are generally based on employment contracts between the entity and one or more selected officers or key employees, and which contain a promise by the employer to pay certain amounts at designated future dates, usually including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period and the carrying amount as of the balance sheet date of the related liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 25 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6409733&loc=d3e19512-108361 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6409961&loc=d3e20487-108367 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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