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Shared-Based Compensation (Options Activity and Position) (Details)
6 Months Ended
Jun. 30, 2016
USD ($)
$ / shares
shares
Shared-based Compensation Options Activity And Position Details  
Outstanding shares | shares 4,039,000
Weighted-average exercise price of options outstanding | $ / shares $ 4.00
Weighted-average remaining contractual term (in years) of options outstanding 7 years 292 days
Aggregate intrinsic value of options outstanding | $ $ 15,000
Exercisable shares | shares 1,828,000
Weighted-average exercise price of options exercisable | $ / shares $ 6.07
Weighted-average remaining contractual term (in years) of options exercisable 6 years 72 days
Aggregate intrinsic value of options exercisable | $ $ 13,000