Income Taxes (Detail 3) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Deferred tax assets:      
Federal and state operating loss carryforwards $ 33,099 $ 22,485  
Equity Compensation 971 206  
Temporary differences 138 113  
Total deferred tax assets 34,208 22,804 14,400
Valuation allowance $ (34,208) $ (22,804)