Selected Quarterly Data - (Unaudited) (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Jun. 27, 2014 |
Mar. 28, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Selected Quarterly Financial Information [Abstract] | |||||
| Preferred Stock Conversions, Cash Payment Upon Conversion | $ 23,400 | $ 23,400 | |||
| Preferred stock conversion inducement payment | $ 19,600 | $ 0 | $ 19,565 | $ 0 | |
| Valuation Allowances and Reserves, Adjustments | $ 113,100 | ||||