Summary of Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Jun. 30, 2014 |
Mar. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Summary of Quarterly Financial Information (Unaudited) | |||||||||||
| Net sales | $ 1,537 | $ 9,929 | $ 14,206 | $ 12,434 | $ 12,116 | $ 10,670 | $ 11,719 | $ 10,228 | $ 38,106 | $ 44,733 | $ 35,171 |
| Gross profit | 990 | 6,996 | 10,269 | 9,197 | 8,903 | 7,838 | 8,838 | 7,654 | 27,452 | 33,233 | 26,579 |
| Net loss | $ (28,250) | $ (6,604) | $ (2,992) | $ (3,384) | $ (3,197) | $ (1,452) | $ (209) | $ (953) | $ (41,230) | $ (5,811) | $ (19,125) |
| Net loss per share: | |||||||||||
| Basic and diluted | $ (1.57) | $ (0.43) | $ (0.20) | $ (0.23) | $ (0.34) | $ (6.94) | $ (1.00) | $ (4.59) | $ (2.61) | $ (2.28) | $ (82.25) |