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Leases (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Leases [Abstract]      
Lease expense $ 175 $ 330 $ 1,324
Future lease payments for operating leases with initial or remaining noncancelable term of one year or more [Abstract]      
2016 148    
2017 116    
2018 & Thereafter 0    
Total minimum payments required $ 264