Organization and Summary of Significant Accounting Policies - Anti-Dilutive Securities Excluded in the Determination of Diluted Income (Loss) Per Share (Details) - shares shares in Thousands |
9 Months Ended | |
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Sep. 30, 2017 |
Sep. 30, 2016 |
|
Outstanding stock options | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Number of anti-dilutive securities (in shares) | 391 | 490 |
Outstanding warrants | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Number of anti-dilutive securities (in shares) | 7,270 | 2,318 |
Restricted stock | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Number of anti-dilutive securities (in shares) | 721 | 116 |