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v3.19.1

Statements of Stockholders' Equity (Deficit) - USD ($) $ in Thousands | Total | Preferred Stock Series A Preferred Stock | Common Stock | Additional Paid In Capital | Accumulated Deficit | IPO | IPO Common Stock | IPO Additional Paid In Capital | Follow-on Offering | Follow-on Offering Common Stock | Follow-on Offering Additional Paid In Capital
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2016 |  | 1,250,000 | 16,527,000 |  |  |  |  |  |  |  |
Beginning balance at Dec. 31, 2016 | $ (7,106) | $ 0 | $ 0 | $ 59,700 | $ (66,806) |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense | 586 |  |  | 586 |  |  |  |  |  |  |
Capital contribution from Parent - therapeutic option right, net of tax | 1,505 |  |  | 1,505 |  |  |  |  |  |  |
Deemed distribution to Parent - note obligation | (66,048) |  |  | (61,791) | (4,257) |  |  |  |  |  |
Net loss | (4,480) |  |  |  | (4,480) |  |  |  |  |  |
Ending balance (in shares) at Dec. 31, 2017 |  | 1,250,000 | 16,527,000 |  |  |  |  |  |  |  |
Ending balance at Dec. 31, 2017 | (75,543) | $ 0 | $ 0 | 0 | (75,543) |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense | 6,971 |  |  |  |  |  |  |  |  |  |
Deemed contribution from Parent, increase of related-party receivable | 1,051 |  |  | 1,051 |  |  |  |  |  |  |
Deemed distribution to Parent - note obligation | (2,000) |  |  | (1,385) | (615) |  |  |  |  |  |
Capital contribution from Parent, convertible note write-off | 66,998 |  |  | 66,998 |  |  |  |  |  |  |
Capital contribution from Parent, forgiveness of related party borrowings | 13,188 |  |  | 13,188 |  |  |  |  |  |  |
Preferred stock conversion upon initial public offering (in shares) |  | (1,250,000) | 2,065,875 |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues (in shares) |  |  |  |  |  |  | 5,047,514 |  |  | 3,600,000 |
Stock issued during period, value, new issues |  |  |  |  |  | $ 53,446 | $ 1 | $ 53,445 | $ 67,379 |  | $ 67,379
Issuance of common stock in connection with the incentive equity plan (in shares) |  |  | 34,602 |  |  |  |  |  |  |  |
Issuance of common stock in connection with the incentive equity plan | (239) |  |  | (239) |  |  |  |  |  |  |
Net loss | (46,867) |  |  |  | (46,867) |  |  |  |  |  |
Ending balance (in shares) at Dec. 31, 2018 |  | 0 | 27,274,991 |  |  |  |  |  |  |  |
Ending balance at Dec. 31, 2018 | $ 84,384 | $ 0 | $ 1 | $ 207,408 | $ (123,025) |  |  |  |  |  |

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