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Quarterly Financial Data (Unaudited) | 12 Months Ended
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Jan. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data (Unaudited) | 16. Quarterly Financial Data (Unaudited)
|  | Quarters Ended |
|  | Fiscal Year |  |  | April 30 |  |  | July 31 |  |  | October 31 |  |  | January 31 |
Net revenues: |  |  | 2017 |  |  | $ | 11,731 |  |  | $ | 8,663 |  |  | $ | 8,057 |  |  | $ | 12,548 |
|  |  | 2016 |  |  | $ | 17,142 |  |  | $ | 7,554 |  |  | $ | 15,681 |  |  | $ | 11,442 |
Gross profit (loss): |  |  | 2017 |  |  | $ | (366 | ) |  | $ | (2,242 | ) |  | $ | (2,137 | ) |  | $ | (2,669 | )
|  |  | 2016 |  |  | $ | 4,576 |  |  | $ | (2,609 | ) |  | $ | 1,723 |  |  | $ | (1,021 | )
Loss before income taxes: |  |  | 2017 |  |  | $ | (6,144 | ) |  | $ | (9,091 | ) |  | $ | (7,558 | ) |  | $ | (8,546 | )
|  |  | 2016 |  |  | $ | (392 | ) |  | $ | (8,645 | ) |  | $ | (6,559 | ) |  | $ | (12,163 | )
Incomes taxes (benefit): |  |  | 2017 |  |  | $ | 299 |  |  | $ | 435 |  |  | $ | (228 | ) |  | $ | 1,308 |
|  |  | 2016 |  |  | $ | (155 | ) |  | $ | (2,797 | ) |  | $ | (746 | ) |  | $ | 14,675 |
Net loss: |  |  | 2017 |  |  | $ | (6,443 | ) |  | $ | (9,526 | ) |  | $ | (7,330 | ) |  | $ | (9,854 | )
|  |  | 2016 |  |  | $ | (237 | ) |  | $ | (5,848 | ) |  | $ | (5,813 | ) |  | $ | (26,838 | )
Loss per common share – basic: |  |  | 2017 |  |  | $ | (0.53 | ) |  | $ | (0.80 | ) |  | $ | (0.62 | ) |  | $ | (0.83 | )
|  |  | 2016 |  |  | $ | (0.02 | ) |  | $ | (0.49 | ) |  | $ | (0.48 | ) |  | $ | (2.23 | )
Income per common share – diluted: |  |  | 2017 |  |  | $ | (0.53 | ) |  | $ | (0.80 | ) |  | $ | (0.62 | ) |  | $ | (0.83 | )
|  |  | 2016 |  |  | $ | (0.02 | ) |  | $ | (0.49 | ) |  | $ | (0.48 | ) |  | $ | (2.23 | )

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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