Net Loss per Share - Basic and Diluted Shares Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Sep. 26, 2015 |
Jun. 27, 2015 |
Mar. 28, 2015 |
Dec. 31, 2014 |
Sep. 27, 2014 |
Jun. 28, 2014 |
Mar. 29, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
Numerator: | |||||||||||
Net loss | $ (9,546) | $ 922 | $ (5,779) | $ (11,930) | $ (2,988) | $ (3,848) | $ (3,951) | $ (10,027) | $ (26,333) | $ (20,814) | $ (17,265) |
Denominator: | |||||||||||
Weighted-average common shares outstanding | 51,489 | 50,808 | 49,419 | ||||||||
Basic and diluted net loss per common share (in dollars per share) | $ (0.51) | $ (0.41) | $ (0.35) | ||||||||
Potentially dilutive shares, weighted-average | 6,120 | 5,020 | 5,308 |