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Share-Based Compensation - Award Activity (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Options exercised (in shares) 0 0
Options vested in period (in shares) 283,168  
Aggregate fair value of options vested in period $ 70  
Unrecognized compensation cost related to stock options $ 400  
Weighted average period for recognition of compensation cost 1 year 8 months 27 days  
Share-based compensation expense $ 100 $ 100