XML 33 R23.htm IDEA: XBRL DOCUMENT
v3.22.2

Stockholders' Equity (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2022
Stockholders' Equity |
Schedule of Shareholder's equity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | ​ | ​ |  | Accumulated |  | ​ | ​ |  | ​ | ​
​ | ​ | Common | ​ | Common | ​ | Additional | ​ | Other | ​ | ​ | ​ | ​ | Total
​ | ​ | Stock | ​ | Stock Par | ​ | Paid-In | ​ | Comprehensive | ​ | Accumulated | ​ | Stockholders’
​ |  | Shares |  | Value |  | Capital |  | Income |  | Deficit |  | Equity
​ | ​ | (In thousands, except share amounts)
Consolidated balance at December 31, 2021 |  | 46,730,198 |  | $ | 47 |  | $ | 1,561,142 |  | $ | 1,894 |  | $ | (1,143,607) |  | $ | 419,476
Shares issued under stock option and employee stock purchase plans |  | 24,150 |  |  | — |  |  | 304 |  |  | — |  |  | — |  |  | 304
Stock-based compensation |  | — |  |  | — |  |  | 3,153 |  |  | — |  |  | — |  |  | 3,153
Unrealized loss on marketable securities |  | — |  |  | — |  |  | — |  |  | (1,782) |  |  | — |  |  | (1,782)
Net loss |  | — |  |  | — |  |  | — |  |  | — |  |  | (23,050) |  |  | (23,050)
Consolidated balance at March 31, 2022 |  | 46,754,348 |  | $ | 47 |  | $ | 1,564,599 |  | $ | 112 |  | $ | (1,166,657) |  | $ | 398,101
Shares issued under stock option and employee stock purchase plans | ​ | 10,355 | ​ | ​ | — | ​ | ​ | 71 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 71
Stock-based compensation | ​ | — | ​ | ​ | — | ​ | ​ | 3,454 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3,454
Unrealized loss on marketable securities | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (529) | ​ | ​ | — | ​ | ​ | (529)
Net loss | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (36,004) | ​ | ​ | (36,004)
Consolidated balance at June 30, 2022 | ​ | 46,764,703 | ​ | $ | 47 | ​ | $ | 1,568,124 | ​ | $ | (417) | ​ | $ | (1,202,661) | ​ | $ | 365,093
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | ​ | ​ |  | Accumulated |  | ​ | ​ |  | ​ | ​
​ | ​ | Common | ​ | Common | ​ | Additional | ​ | Other | ​ | ​ | ​ | ​ | Total
​ | ​ | Stock | ​ | Stock Par | ​ | Paid-In | ​ | Comprehensive | ​ | Accumulated | ​ | Stockholders’
​ | ​ | Shares | ​ | Value | ​ | Capital | ​ | Income | ​ | Deficit | ​ | Equity
​ | ​ | (In thousands, except share amounts)
Consolidated balance at December 31, 2020 |  | 39,603,771 | ​ | $ | 40 | ​ | $ | 1,279,824 | ​ | $ | 2,589 | ​ | $ | (1,073,096) | ​ | $ | 209,357
Shares issued under stock option and employee stock purchase plans |  | 10,867 | ​ |  | — | ​ |  | 74 | ​ |  | — | ​ |  | — | ​ |  | 74
Stock-based compensation |  | — | ​ |  | — | ​ |  | 1,275 | ​ |  | — | ​ |  | — | ​ |  | 1,275
Unrealized loss on marketable securities |  | — | ​ |  | — | ​ |  | — | ​ |  | (2) | ​ |  | — | ​ |  | (2)
Net loss |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | (16,538) | ​ |  | (16,538)
Consolidated balance at March 31, 2021 |  | 39,614,638 | ​ | $ | 40 | ​ | $ | 1,281,173 | ​ | $ | 2,587 | ​ | $ | (1,089,634) | ​ | $ | 194,166
Shares issued under stock option and employee stock purchase plans | ​ | 2,058 | ​ | ​ | — | ​ | ​ | (25) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (25)
Stock-based compensation | ​ | — | ​ | ​ | — | ​ | ​ | 1,509 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,509
Unrealized gain on marketable securities | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 5 | ​ | ​ | — | ​ | ​ | 5
Net loss | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (13,373) | ​ | ​ | (13,373)
Consolidated balance at June 30, 2021 | ​ | 39,616,696 | ​ | $ | 40 | ​ | $ | 1,282,657 | ​ | $ | 2,592 | ​ | $ | (1,103,007) | ​ | $ | 182,282

X
- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644 + Details
Name: | us-gaap_ScheduleOfStockholdersEquityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration