Stock-Based Compensation - Equity Incentive Plan Terms (Details) - shares
|
1 Months Ended |
6 Months Ended |
|
Jan. 31, 2015 |
Jun. 30, 2015 |
Dec. 31, 2014 |
| Award terms |
|
|
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| Shares outstanding |
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3,384,540
|
3,425,117
|
| Stock Options Subject to Right of Repurchase |
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|
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| Award terms |
|
|
|
| Shares outstanding |
|
0
|
5,000
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| Equity Incentive Plans |
|
|
|
| Stock-Based compensation |
|
|
|
| Shares available for future grants |
|
2,610,701
|
|
| Equity Incentive Plans | Stock options |
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|
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| Award terms |
|
|
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| Term of grant (in years) |
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10 years
|
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| Equity Incentive Plans | One Year Cliff | Stock options |
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|
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| Award terms |
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| Vesting period |
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1 year
|
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| Equity Incentive Plans | Monthly | Stock options |
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|
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| Award terms |
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|
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| Vesting period |
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36 months
|
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| 2015 Equity Incentive Plan |
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|
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| Stock-Based compensation |
|
|
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| Initial shares available for grant from equity incentive plan |
2,500,000
|
|
|
| Plan terms |
|
|
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| Number of shares option, minimum annual increase in number of shares reserved for issuance |
1,750,000
|
|
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| Percentage of common stock outstanding option, minimum annual increase in number of shares reserved for issuance (as a percent) |
5.00%
|
|
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| Plan term (in years) |
10 years
|
|
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| 2010 Equity Incentive Plan |
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|
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| Stock-Based compensation |
|
|
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| Maximum shares available for grant transferred between equity incentive plans. |
4,537,868
|
|
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