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v3.19.2

Consolidated Statements Stockholders' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands | Common Stock [Member] | Additional Paid-in Capital [Member] | AOCI Attributable to Parent [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | $ 984 | $ 714,869 | $ (243) | $ (631,843) | $ 83,767
Impact to retained earnings from adoption of new standard at Dec. 31, 2017 |  |  |  | 1,126 | 1,126
Net loss |  |  |  | (25,777) | (25,777)
Other comprehensive income |  |  | (233) |  | (233)
Exercise of stock options | 2 | 79 |  |  | 81
Employee stock purchase plan sales | 1 | 186 |  |  | 187
Stock-based compensation expense |  | 2,903 |  |  | 2,903
Balance at Mar. 31, 2018 | 987 | 718,037 | (476) | (656,494) | 62,054
Balance at Dec. 31, 2017 | 984 | 714,869 | (243) | (631,843) | 83,767
Impact to retained earnings from adoption of new standard at Dec. 31, 2017 |  |  |  | 1,126 | 1,126
Net loss |  |  |  |  | (44,223)
Balance at Jun. 30, 2018 | 989 | 720,587 | (452) | (674,940) | 46,184
Balance at Mar. 31, 2018 | 987 | 718,037 | (476) | (656,494) | 62,054
Net loss |  |  |  | (18,446) | (18,446)
Other comprehensive income |  |  | 24 |  | 24
Exercise of stock options | 2 | 466 |  |  | 468
Stock-based compensation expense |  | 2,084 |  |  | 2,084
Balance at Jun. 30, 2018 | 989 | 720,587 | (452) | (674,940) | 46,184
Balance at Dec. 31, 2018 | 1,101 | 780,400 | (297) | (731,969) | 49,235
Impact to retained earnings from adoption of new standard at Dec. 31, 2018 |  |  |  | 238 | 238
Net loss |  |  |  | (31,054) | (31,054)
Other comprehensive income |  |  | 208 |  | 208
Exercise of stock options | 2 | 341 |  |  | 343
Employee stock purchase plan sales |  | 220 |  |  | 220
Stock-based compensation expense |  | 3,317 |  |  | 3,317
Balance at Mar. 31, 2019 | 1,103 | 784,278 | (89) | (762,785) | 22,507
Balance at Dec. 31, 2018 | 1,101 | 780,400 | (297) | (731,969) | 49,235
Impact to retained earnings from adoption of new standard at Dec. 31, 2018 |  |  |  | 238 | 238
Net loss |  |  |  |  | (68,683)
Balance at Jun. 30, 2019 | 1,104 | 790,076 | 41 | (800,414) | (9,193)
Balance at Mar. 31, 2019 | 1,103 | 784,278 | (89) | (762,785) | 22,507
Net loss |  |  |  | (37,629) | (37,629)
Other comprehensive income |  |  | 130 |  | 130
Exercise of stock options | 1 | 413 |  |  | 414
Stock-based compensation expense |  | 5,385 |  |  | 5,385
Balance at Jun. 30, 2019 | $ 1,104 | $ 790,076 | $ 41 | $ (800,414) | $ (9,193)

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