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Convertible Preferred Stock - Convertible Preferred Stock Outstanding (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
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12 Months Ended |
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|
Dec. 31, 2012
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Dec. 31, 2013
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| Preferred Stock [Line Items] |
|
|
| Shares Authorized |
0 |
10,000,000 |
| Shares Issued |
0 |
0 |
| Shares Outstanding |
0 |
0 |
| Convertible preferred stock |
$ 0 |
$ 0 |
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Convertible preferred stock
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|
|
| Preferred Stock [Line Items] |
|
|
| Shares Authorized |
17,831,164 |
|
| Shares Issued |
17,416,317 |
|
| Shares Outstanding |
17,416,317 |
|
| Convertible preferred stock |
20,031 |
0 |
| Aggregate Liquidation Preference |
20,171 |
|
|
Series A Preferred Stock
|
|
|
| Preferred Stock [Line Items] |
|
|
| Shares Authorized |
10,831,164 |
0 |
| Shares Issued |
10,831,164 |
0 |
| Shares Outstanding |
10,831,164 |
0 |
| Convertible preferred stock |
5,024 |
0 |
| Aggregate Liquidation Preference |
5,091 |
5,091 |
| Issuance Price Per Share (USD per share) |
$ 0.47 |
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Series B Preferred Stock
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|
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| Preferred Stock [Line Items] |
|
|
| Shares Authorized |
7,000,000 |
0 |
| Shares Issued |
6,585,153 |
0 |
| Shares Outstanding |
6,585,153 |
0 |
| Convertible preferred stock |
15,007 |
0 |
| Aggregate Liquidation Preference |
$ 15,080 |
$ 15,080 |
| Issuance Price Per Share (USD per share) |
$ 2.29 |
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