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v3.19.1

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common stock | Additional paid-in capital | AOCI Attributable to Parent | Accumulated deficit
--- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2017 |  | 41,612,395 |  |  |
Balance at the beginning of the period at Dec. 31, 2017 | $ 156,437 | $ 42 | $ 966,534 | $ 3,969 | $ (814,108)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Exercised (in shares) |  | 77,312 |  |  |
Exercise of options | 1,136 |  | 1,136 |  |
Restricted stock vesting and issuance (in shares) |  | 119,691 |  |  |
Restricted stock vesting and issuance | 0 |  |  |  |
Share-based compensation expense | 7,748 |  | 7,748 |  |
Net loss | (19,263) |  |  |  | (19,263)
Comprehensive income | 984 |  |  | 984 |
Balance (in shares) at Mar. 31, 2018 |  | 41,809,398 |  |  |
Balance at the end of the period at Mar. 31, 2018 | 150,308 | $ 42 | 975,418 | 4,953 | (830,105)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Adjustment to accumulated deficit | 3,266 |  |  |  | 3,266
Balance (in shares) at Dec. 31, 2018 |  | 50,606,147 |  |  |
Balance at the beginning of the period at Dec. 31, 2018 | 350,727 | $ 51 | 1,288,137 | 1,462 | (938,923)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Issuance of common stock related to equity offering (in shares) |  | 7,563,725 |  |  |
Issuance of common stock related to equity offering | 224,441 | $ 7 | 224,434 |  |
Exercised (in shares) |  | 80,826 |  |  |
Exercise of options | 1,281 |  | 1,281 |  |
Restricted stock vesting and issuance (in shares) |  | 168,092 |  |  |
Restricted stock vesting and issuance | 0 |  |  |  |
Share-based compensation expense | 9,263 |  | 9,263 |  |
Net loss | (72,113) |  |  |  | (72,113)
Comprehensive income | (657) |  |  | (657) |
Balance (in shares) at Mar. 31, 2019 |  | 58,418,790 |  |  |
Balance at the end of the period at Mar. 31, 2019 | $ 512,942 | $ 58 | $ 1,523,115 | $ 805 | $ (1,011,036)

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