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Correction of immaterial errors (Tables) | 12 Months Ended
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Jan. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items] |
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block] | A reconciliation of the effects of the adjustments to the previously reported balance sheet and stockholders' equity at January 31, 2017 follows:
(In thousands) | As Reported | Adjustment | Revised
Additional paid in capital | $53,716 | $1,642 | $55,358
Retained earnings | 8,515 |  | (1,642 | ) | 6,873 |
A reconciliation of the effects of the adjustments to the previously reported statement of operations for the year ended January 31, 2017 follows:
(In thousands) | As Reported | Adjustment | Revised
General and administrative expense | $16,783 | $796 | $17,579
Total operating expenses | 22,504 |  | 796 |  | 23,300 |
Loss from operations | (10,788 | ) | (796 | ) | (11,584 | )
Loss from continuing operations before income taxes | (12,977 | ) | (796 | ) | (13,773 | )
Loss from continuing operations | (12,366 | ) | (796 | ) | (13,162 | )
Net loss | (11,678 | ) | (796 | ) | (12,474 | )
Loss per share from continuing operations | (1.65 | ) | (0.11 | ) | (1.76 | )
Loss per share | (1.56 | ) | (0.11 | ) | (1.67 | )
A reconciliation of the effects of the adjustments to the previously reported statement of cash flows for the year ending January 31, 2017 follows:
(In thousands) | As Reported | Adjustment | Revised
Net loss | ($11,678) | ($796) | ($12,474)
Stock-based compensation expense | 650 |  | 796 |  | 1,446 |

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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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- Definition Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22663-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22644-107794 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22658-107794 + Details
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