Commitments and Contingencies (Details) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 12 Months Ended
May 22, 2012
Dec. 31, 2014
Dec. 31, 2013
May 22, 2012
Commitments and Contingencies Disclosure [Abstract]        
Deferred gain       $ 213
Lease term 5 years      
Gain recognized in period   43 43  
Rent expense   $ 707 $ 699