Credit Facility - June 2013 Amended Credit Facility (Details) - Second Amended Credit Facility - Common Stock Purchase Warrants - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2013 |
Jun. 13, 2013 |
|
| Line of Credit Facility [Line Items] | ||
| Debt discount | $ 0.4 | |
| Draws on Credit Facility | ||
| Line of Credit Facility [Line Items] | ||
| Number of shares that may be purchased under warrant | 26,666 | |
| Exercise price of warrants (in dollars per share) | $ 7.92 |