Condensed Statements of Operations (Unaudited) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
|||
| Income Statement [Abstract] | ||||||
| Revenues (including amounts from related parties of $0 and $2,813 during the three and nine months ended September 30, 2020, respectively, and $6,274 and $16,687 during the three and nine months ended September 30, 2019, respectively) (1) | [1] | $ 17,823 | $ 12,277 | $ 34,444 | $ 31,431 | |
| Operating expenses | ||||||
| Research and development | 19,361 | 16,897 | 54,223 | 48,220 | ||
| General and administrative | 9,079 | 8,115 | 26,435 | 23,897 | ||
| Total operating expenses | 28,440 | 25,012 | 80,658 | 72,117 | ||
| Loss from operations | (10,617) | (12,735) | (46,214) | (40,686) | ||
| Interest income | 295 | 964 | 1,320 | 3,264 | ||
| Unrealized gain on equity securities | 29,778 | 78,638 | ||||
| Interest and other expense, net | (2,317) | (1,141) | (6,328) | (3,533) | ||
| Net income (loss) | $ 17,139 | $ (12,912) | $ 27,416 | $ (40,955) | ||
| Net income (loss) per share, basic | $ 0.46 | $ (0.56) | $ 0.91 | $ (1.79) | ||
| Net income (loss) per share, diluted | $ 0.45 | $ (0.56) | $ 0.90 | $ (1.79) | ||
| ||||||
| X | ||||||||||
- Definition Interest and other expense, net. No definition available.
|
| X | ||||||||||
- 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/disclosureRef
|
| X | ||||||||||
- 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/exampleRef
|
| X | ||||||||||
- Definition Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The aggregate amount of income from investments (for example, dividends) not considered a component of the entity's core operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- 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/disclosureRef
|
| X | ||||||||||
- 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.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|