Selected Quarterly Financial Data (Unaudited) - Summary (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2022 |
Sep. 30, 2022 |
Jun. 30, 2022 |
Mar. 31, 2022 |
Dec. 31, 2021 |
Sep. 30, 2021 |
Jun. 30, 2021 |
Mar. 31, 2021 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
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| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Total revenues | $ 50,382 | $ 59,221 | $ 50,126 | $ 36,516 | $ 56,404 | $ 59,694 | $ 78,854 | $ 46,592 | $ 196,245 | $ 241,544 | $ 163,562 |
| Research and development | 9,197 | 9,239 | 8,467 | 9,179 | 8,147 | 7,430 | 7,482 | 9,046 | 36,082 | 32,105 | 40,503 |
| General and administrative | 31,131 | 14,920 | 12,086 | 11,925 | 12,596 | 10,967 | 12,412 | 10,815 | 70,062 | 46,790 | 60,012 |
| Total operating costs and expenses | 70,481 | 46,880 | 41,464 | 34,383 | 41,280 | 34,597 | 24,941 | 36,875 | 193,208 | 137,693 | 143,176 |
| Net income (loss) from continuing operations | (14,534) | 9,645 | 12,599 | (12,929) | (3,194) | 20,338 | 36,442 | 22,767 | (5,219) | 76,353 | 6,598 |
| Net loss from discontinued operations | (2,951) | (9,241) | (13,494) | (2,456) | (2,223) | (6,615) | (5,717) | (4,660) | (28,142) | (19,215) | (9,583) |
| Net income (loss) | $ (17,485) | $ 404 | $ (895) | $ (15,385) | $ (5,417) | $ 13,723 | $ 30,725 | $ 18,107 | $ (33,361) | $ 57,138 | $ (2,985) |
| Basic net income (loss) from continuing operations (USD per share) | $ (0.86) | $ 0.57 | $ 0.75 | $ (0.77) | $ (0.19) | $ 1.22 | $ 2.19 | $ 1.39 | $ (0.31) | $ 4.59 | $ 0.41 |
| Basic net income (loss) from discontinued operations (USD per share) | (0.17) | (0.55) | (0.80) | (0.15) | (0.13) | (0.40) | (0.34) | (0.28) | (1.67) | (1.16) | (0.59) |
| Diluted net income (loss) from continuing operations (USD per share) | (0.86) | 0.57 | 0.75 | (0.77) | (0.19) | 1.19 | 2.12 | 1.32 | (0.31) | 4.43 | 0.39 |
| Diluted net income (loss) from discontinued operations (USD per share) | $ (0.17) | $ (0.55) | $ (0.80) | $ (0.15) | $ (0.13) | $ (0.39) | $ (0.33) | $ (0.27) | $ (1.67) | $ (1.11) | $ (0.57) |
| Shares used in the computation of basic net income (loss) per share (in shares) | 16,890,000 | 16,888,000 | 16,868,000 | 16,824,000 | 16,733,000 | 16,688,000 | 16,659,000 | 16,435,000 | 16,868,000 | 16,630,000 | 16,185,000 |
| Shares used in the computation of diluted net income (loss) per share (in shares) | 16,733,000 | 17,142,000 | 17,172,000 | 17,248,000 | 16,868,000 | 17,246,000 | 16,825,000 | ||||
| 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
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- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) derived from continuing operations during 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/disclosureRef
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- Definition Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- 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. Excludes Selling, General and Administrative Expense. No definition available.
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- References No definition available.
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- 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://www.xbrl.org/2009/role/commonPracticeRef
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- 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
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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