Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Schedule of future minimum lease payments
(in thousands)   Future Minimum
Lease Payments
 
2017   $ 678  
2018     393  
2019     316  
2020     262  
2021     266  
2022 and thereafter     112  
Total minimum lease payments   $ 2,027