| Acquisition Pro forma Information (Details) $ / shares in Units, $ in Thousands | 12 Months Ended | 
|---|---|
| Dec. 31, 2014  USD ($)  $ / shares | |
| Business Combinations [Abstract] | |
| Revenue | $ 9,786 | 
| Net loss | $ 24,299 | 
| Loss per share (usd per share) | $ / shares | $ (1.63) | 
| X | ||||||||||
| 
- Definition The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- References No definition available. 
 |