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Subsequent Events (Details) - Convertible Notes Due January 2017
$ / shares in Units, $ in Thousands
Jul. 18, 2016
USD ($)
$ / shares
shares
Subsequent Events  
Convertible notes face value $ 13,000
Tengram Capital Partners, LP  
Subsequent Events  
Interest rate (as a percent) 3.75%
Convertible notes face value $ 13,000
Tengram Capital Partners, LP | Preferred Series A-1  
Subsequent Events  
Conversion price (in dollars per share) | $ / shares $ 3.00
Tengram Capital Partners, LP | Maximum | Preferred Series A-1  
Subsequent Events  
Number of shares issuable upon conversion of the debt | shares 4,500,000