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Stock-Based Compensation (Details) (Director [Member], Non-Employee Director Equity Plan 2014 [Member], USD $)
6 Months Ended
Jun. 30, 2014
May 06, 2014
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares authorized 1,000,000  
Maximum aggregate grant date fair market value for restricted stock units per grantee $ 750,000  
Number of restricted stock units granted to each non-employee director   5,000