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Stockholders' Equity (Recognized Contractor and Employee Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Recognized Employee Expense [Line Items]        
Contractor options expense recognized $ 0 $ 0 $ 0 $ 0
Employee options expense recognized 111 10 111 19
Total option expense recognized $ 111 $ 10 $ 111 $ 19