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Equity Incentive Plans and Stock-Based Compensation (Details 4) | 12 Months Ended
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Dec. 31, 2018 $ / shares shares
Exercise price range 1 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | $ 4.13
Exercise price range, high end of range (in dollars per share) | $ 5.39
Options Outstanding |
Number Outstanding (in shares) | shares | 53,584
Weighted Average Remaining Contractual Life (in years) | 3 years 7 months 20 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 4.43
Options Exercisable |
Number Exercisable (in shares) | shares | 53,584
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 4.43
Exercise price range 2 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 5.46
Exercise price range, high end of range (in dollars per share) | $ 5.46
Options Outstanding |
Number Outstanding (in shares) | shares | 362,014
Weighted Average Remaining Contractual Life (in years) | 2 years 2 months 12 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.46
Options Exercisable |
Number Exercisable (in shares) | shares | 362,014
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.46
Exercise price range 3 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 5.63
Exercise price range, high end of range (in dollars per share) | $ 5.76
Options Outstanding |
Number Outstanding (in shares) | shares | 324,773
Weighted Average Remaining Contractual Life (in years) | 1 year 11 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.71
Options Exercisable |
Number Exercisable (in shares) | shares | 324,773
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.71
Exercise price range 4 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 6.83
Exercise price range, high end of range (in dollars per share) | $ 8.73
Options Outstanding |
Number Outstanding (in shares) | shares | 275,875
Weighted Average Remaining Contractual Life (in years) | 2 years 5 months 19 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 7.73
Options Exercisable |
Number Exercisable (in shares) | shares | 275,875
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 7.73
Exercise price range 5 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 8.76
Exercise price range, high end of range (in dollars per share) | $ 8.76
Options Outstanding |
Number Outstanding (in shares) | shares | 540,878
Weighted Average Remaining Contractual Life (in years) | 3 years 29 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 8.76
Options Exercisable |
Number Exercisable (in shares) | shares | 540,878
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 8.76
Exercise price range 6 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 9.53
Exercise price range, high end of range (in dollars per share) | $ 11.93
Options Outstanding |
Number Outstanding (in shares) | shares | 325,858
Weighted Average Remaining Contractual Life (in years) | 4 years 1 month 13 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 11.23
Options Exercisable |
Number Exercisable (in shares) | shares | 319,736
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 11.23
Exercise price range 7 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 11.93
Exercise price range, high end of range (in dollars per share) | $ 12.31
Options Outstanding |
Number Outstanding (in shares) | shares | 433,488
Weighted Average Remaining Contractual Life (in years) | 5 years 4 months 17 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 12.23
Options Exercisable |
Number Exercisable (in shares) | shares | 289,796
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 12.27
Exercise price range 8 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 12.46
Exercise price range, high end of range (in dollars per share) | $ 12.84
Options Outstanding |
Number Outstanding (in shares) | shares | 582,596
Weighted Average Remaining Contractual Life (in years) | 7 years 6 months 22 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 12.80
Options Exercisable |
Number Exercisable (in shares) | shares | 215,598
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 12.81
Exercise price range 9 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 13.60
Exercise price range, high end of range (in dollars per share) | $ 21.95
Options Outstanding |
Number Outstanding (in shares) | shares | 274,025
Weighted Average Remaining Contractual Life (in years) | 4 years 3 months 22 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 16.00
Options Exercisable |
Number Exercisable (in shares) | shares | 211,025
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 16.71
Exercise price range 10 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 22.72
Exercise price range, high end of range (in dollars per share) | $ 22.72
Options Outstanding |
Number Outstanding (in shares) | shares | 62,800
Weighted Average Remaining Contractual Life (in years) | 9 months 4 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 22.72
Options Exercisable |
Number Exercisable (in shares) | shares | 62,800
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 22.72
Exercise price range 11 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 4.13
Exercise price range, high end of range (in dollars per share) | $ 22.72
Options Outstanding |
Number Outstanding (in shares) | shares | 3,235,891
Weighted Average Remaining Contractual Life (in years) | 4 years 4 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 10.25
Options Exercisable |
Number Exercisable (in shares) | shares | 2,656,079
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 9.71

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