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Quarterly Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Information | The following table summarizes the unaudited statements of operations for each quarter of 2018 and 2017 (in thousands, except per share amounts):
|  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |
2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and development |  |  | 1,201 |  |  |  | 1,045 |  |  |  | 1,541 |  |  |  | 2,081 |
General and administrative |  |  | 1,813 |  |  |  | 1,751 |  |  |  | 1,753 |  |  |  | 1,628 |
Total operating expenses |  |  | 3,014 |  |  |  | 2,796 |  |  |  | 3,294 |  |  |  | 3,709 |
Other income (expense) |  |  | (8 | ) |  |  | 8 |  |  |  | 54 |  |  |  | 72 |
Net loss |  |  | (3,022 | ) |  |  | (2,788 | ) |  |  | (3,240 | ) |  |  | (3,637 | )
Basic and diluted net loss per share |  | $ | (2.43 | ) |  | $ | (1.82 | ) |  | $ | (0.71 | ) |  | $ | (0.55 | )
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and development |  |  | 61 |  |  |  | 62 |  |  |  | 825 |  |  |  | 2,153 |
General and administrative |  |  | 260 |  |  |  | 96 |  |  |  | 1,546 |  |  |  | 1,629 |
Total operating expenses |  |  | 321 |  |  |  | 158 |  |  |  | 2,371 |  |  |  | 3,782 |
Other income |  |  | (8 | ) |  |  | (11 | ) |  |  | (7,025 | ) |  |  | 42 |
Recovery of deferred income taxes |  |  | 124 |  |  |  | — |  |  |  | 2,927 |  |  |  | — |
Net loss |  |  | (205 | ) |  |  | (169 | ) |  |  | (6,469 | ) |  |  | (3,740 | )
Basic and diluted net loss per share |  | $ | (96.56 | ) |  | $ | (79.60 | ) |  | $ | (8.95 | ) |  | $ | (3.17 | )

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109225645&loc=d3e1280-108306 + Details
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