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SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) | 11. SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
|  | First |  |  | Second |  |  | Third |  |  | Fourth |
|  | Quarter |  |  | Quarter |  |  | Quarter |  |  | Quarter |
|  | (In thousands, except per share amounts) |
Year Ended December 31, 2019: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 57 |  |  | $ | 101 |  |  | $ | 131 |  |  | $ | 171 |
Operating expenses |  |  | 11,358 |  |  |  | 15,325 |  |  |  | 16,103 |  |  |  | 30,179 |
Net loss |  |  | (10,059 | ) |  |  | (14,239 | ) |  |  | (15,180 | ) |  |  | (29,070 | )
Basic and diluted net loss per share |  | $ | (0.05 | ) |  | $ | (0.08 | ) |  | $ | (0.08 | ) |  | $ | (0.15 | )
Year Ended December 31, 2018: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 318 |  |  | $ | 208 |  |  | $ | 165 |  |  | $ | 375 |
Operating expenses |  |  | 7,755 |  |  |  | 7,450 |  |  |  | 6,970 |  |  |  | 9,964 |
Net loss |  |  | (7,186 | ) |  |  | (6,934 | ) |  |  | (5,597 | ) |  |  | (7,300 | )
Basic and diluted net loss per share |  | $ | (0.04 | ) |  | $ | (0.04 | ) |  | $ | (0.03 | ) |  | $ | (0.04 | )
Basic and diluted net loss per share are computed independently for each of the quarters presented. Therefore, the sum of the quarters may not be equal to the full year net loss per share amounts.

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- References No definition available. + Details
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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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