Quarterly Results of Operations-Unaudited - Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
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Jan. 31, 2016 |
Oct. 31, 2015 |
Jul. 31, 2015 |
Apr. 30, 2015 |
Jan. 31, 2015 |
Oct. 31, 2014 |
Jul. 31, 2014 |
Apr. 30, 2014 |
Jan. 31, 2016 |
Jan. 31, 2015 |
Jan. 31, 2014 |
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| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Revenue | $ 27,197 | $ 28,747 | $ 27,871 | $ 23,177 | $ 31,279 | $ 29,970 | $ 29,849 | $ 24,337 | |||
| Gross profit | 15,419 | 6,877 | 14,427 | 10,116 | 16,036 | 14,793 | 15,387 | 10,891 | $ 46,839 | $ 57,107 | $ 79,199 |
| Operating expenses | 37,561 | 18,718 | 19,177 | 19,582 | 21,300 | 20,660 | 20,574 | 21,026 | 95,038 | 83,560 | 80,828 |
| Net loss from continuing operations | (6,140) | (6,195) | (5,687) | (9,467) | |||||||
| Net income (loss) from discontinued operations | (114) | 119 | |||||||||
| Net loss | $ (22,280) | $ (10,565) | $ (5,027) | $ (9,825) | $ (6,140) | $ (6,309) | $ (5,568) | $ (9,467) | $ (47,697) | $ (27,484) | $ (3,030) |
| Net loss per share from continuing operations | |||||||||||
| Basic | $ (0.19) | $ (0.19) | $ (0.17) | $ (0.29) | $ (1.42) | $ (0.84) | $ (0.07) | ||||
| Diluted | (0.19) | (0.19) | (0.17) | (0.29) | (1.42) | (0.84) | (0.07) | ||||
| Income (loss) per share from discontinued operations | |||||||||||
| Basic | 0.00 | 0.00 | 0.00 | (0.02) | |||||||
| Diluted | 0.00 | 0.00 | 0.00 | (0.02) | |||||||
| Loss per share | |||||||||||
| Basic | $ (0.66) | $ (0.31) | $ (0.16) | $ (0.29) | (0.19) | (0.19) | (0.17) | (0.29) | (1.42) | (0.84) | (0.09) |
| Diluted | $ (0.66) | $ (0.31) | $ (0.16) | $ (0.29) | $ (0.19) | $ (0.19) | $ (0.17) | $ (0.29) | $ (1.42) | $ (0.84) | $ (0.09) |
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- Definition Earnings per share from continuing operations. No definition available.
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- Definition Earnings per share from discontinued operations abstract. No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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- References No definition available.
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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