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Quarterly Financial Information (unaudited) | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information (unaudited) |
Quarterly Financial Information (unaudited) | Note 11 - Quarterly Financial Information (unaudited)
(in thousands, except per share data) |  | First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter
2019 |  |  |  |  |  |  |  |  |  |  |  |
Total Revenue |  | $ | — |  | $ | — |  | $ | — |  | $ | —
Operating expenses |  | $ | 9,754 |  | $ | 10,212 |  | $ | 9,996 |  | $ | 15,923
Other income (expense) |  | $ | 141 |  | $ | (187) |  | $ | (172) |  | $ | (286)
Net loss |  | $ | (9,613) |  | $ | (10,399) |  | $ | (10,168) |  | $ | (16,209)
Basic and diluted net loss per common share |  | $ | (0.34) |  | $ | (0.29) |  | $ | (0.25) |  | $ | (0.41)
2018 |  |  |  |  |  |  |  |  |  |  |  |
Total Revenue |  | $ | 50 |  | $ | — |  | $ | — |  | $ | (50)
Operating expenses |  | $ | 6,477 |  | $ | 5,240 |  | $ | 7,656 |  | $ | 11,850
Other income |  | $ | 146 |  | $ | 147 |  | $ | 138 |  | $ | 130
Net loss |  | $ | (6,281) |  | $ | (5,093) |  | $ | (7,518) |  | $ | (11,770)
Basic and diluted net loss per common share |  | $ | (0.24) |  | $ | (0.19) |  | $ | (0.28) |  | $ | (0.43)

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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