CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDER'S EQUITY - USD ($) $ in Thousands |
Total |
Stock Purchase Agreement |
Follow On Offering |
Private Placement |
Common Stock |
Common Stock
Stock Purchase Agreement
|
Common Stock
Follow On Offering
|
Common Stock
Private Placement
|
Additional Paid‑In Capital |
Additional Paid‑In Capital
Stock Purchase Agreement
|
Additional Paid‑In Capital
Follow On Offering
|
Additional Paid‑In Capital
Private Placement
|
Accumulated Other Comprehensive Gain (Loss) |
Accumulated Deficit |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Balance at Dec. 31, 2017 | $ 65,324 | $ 26 | $ 220,606 | $ (42) | $ (155,266) | |||||||||
Balance (in shares) at Dec. 31, 2017 | 26,423,375 | |||||||||||||
Exercise of stock options | 242 | 242 | ||||||||||||
Exercise of stock options, Shares | 58,773 | |||||||||||||
Issuance of common stock, net of issuance costs | $ 7,648 | $ 42,664 | $ 1,380 | $ 1 | $ 5 | $ 7,647 | $ 42,659 | $ 1,380 | ||||||
Issuance of common stock, net of costs and fees (in shares) | 793,021 | 4,816,753 | 144,505 | |||||||||||
Stock-based compensation expense | 1,696 | 1,696 | ||||||||||||
Unrealized holding gains on marketable securities | 8 | 8 | ||||||||||||
Net loss | (14,463) | (14,463) | ||||||||||||
Balance at Mar. 31, 2018 | 104,499 | $ 32 | 274,230 | (34) | (169,729) | |||||||||
Balance (in shares) at Mar. 31, 2018 | 32,236,427 | |||||||||||||
Balance at Dec. 31, 2017 | 65,324 | $ 26 | 220,606 | (42) | (155,266) | |||||||||
Balance (in shares) at Dec. 31, 2017 | 26,423,375 | |||||||||||||
Net loss | (62,300) | |||||||||||||
Balance at Dec. 31, 2018 | $ 78,586 | $ 34 | 296,100 | (3) | (217,545) | |||||||||
Balance (in shares) at Dec. 31, 2018 | 33,765,864 | 33,765,864 | ||||||||||||
Exercise of stock options | $ 3 | 3 | ||||||||||||
Exercise of stock options, Shares | 1,077 | 1,077 | ||||||||||||
Stock-based compensation expense | $ 1,879 | 1,879 | ||||||||||||
Unrealized holding gains on marketable securities | 11 | 11 | ||||||||||||
Net loss | (16,461) | (16,461) | ||||||||||||
Balance at Mar. 31, 2019 | $ 64,018 | $ 34 | $ 297,982 | $ 8 | $ (234,006) | |||||||||
Balance (in shares) at Mar. 31, 2019 | 33,766,941 | 33,766,941 |
X | ||||||||||
- Definition Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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X | ||||||||||
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Value of stock issued as a result of the exercise of stock options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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