CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($)
$ in Thousands |
Common stock |
Additional paid-in capital |
Accumulated other comprehensive income (loss) |
Accumulated deficit |
Total |
| Stockholders Equity |
$ 80
|
$ 586,798
|
$ 75
|
$ (312,740)
|
$ 274,213
|
| Balances at Beginning of period (in shares) at Dec. 31, 2019 |
80,016,245
|
|
|
|
|
| Balances at Beginning of period at Dec. 31, 2019 |
$ 80
|
586,798
|
75
|
(312,740)
|
274,213
|
| Issuance of common stock upon exercise of stock options |
|
486
|
|
|
486
|
| Issuance of common stock upon exercise of stock options (in shares) |
413,721
|
|
|
|
|
| Stock-based compensation expense |
|
8,488
|
|
|
8,488
|
| Unrealized gains on investments |
|
|
456
|
|
456
|
| Stockholders Equity |
$ 80
|
595,772
|
531
|
(361,226)
|
235,157
|
| Net loss |
|
|
|
(48,486)
|
(48,486)
|
| Balances at End of period (in shares) at Mar. 31, 2020 |
80,429,966
|
|
|
|
|
| Balances at End of period at Mar. 31, 2020 |
$ 80
|
595,772
|
531
|
(361,226)
|
235,157
|
| Balances at Beginning of period (in shares) at Dec. 31, 2019 |
80,016,245
|
|
|
|
|
| Balances at Beginning of period at Dec. 31, 2019 |
$ 80
|
586,798
|
75
|
(312,740)
|
274,213
|
| Stockholders Equity |
$ 80
|
586,798
|
75
|
(312,740)
|
274,213
|
| Net loss |
|
|
|
|
(167,700)
|
| Balances at End of period (in shares) at Dec. 31, 2020 |
81,053,651
|
|
|
|
|
| Balances at End of period at Dec. 31, 2020 |
$ 81
|
621,946
|
4
|
(480,471)
|
141,560
|
| Stockholders Equity |
80
|
595,772
|
531
|
(361,226)
|
235,157
|
| Stockholders Equity |
81
|
621,946
|
4
|
(480,471)
|
141,560
|
| Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs of $800 |
$ 7
|
187,193
|
|
|
187,200
|
| Issuance of common stock from public offering, net of commissions, underwriting discounts and offering costs (in shares) |
6,896,552
|
|
|
|
|
| Issuance of common stock upon exercise of stock options |
$ 1
|
5,907
|
|
|
5,908
|
| Issuance of common stock upon exercise of stock options (in shares) |
1,237,324
|
|
|
|
|
| Stock-based compensation expense |
|
8,642
|
|
|
8,642
|
| Unrealized gains on investments |
|
|
3
|
|
3
|
| Stockholders Equity |
$ 89
|
823,688
|
7
|
(522,801)
|
141,560
|
| Net loss |
|
|
|
(42,330)
|
(42,330)
|
| Balances at End of period (in shares) at Mar. 31, 2021 |
89,187,527
|
|
|
|
|
| Balances at End of period at Mar. 31, 2021 |
$ 89
|
823,688
|
7
|
(522,801)
|
300,983
|
| Stockholders Equity |
$ 89
|
$ 823,688
|
$ 7
|
$ (522,801)
|
$ 300,983
|