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Stock-Based Compensation (Details 1) - Equity Incentive Plan 2013 [Member]
6 Months Ended
Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected volatility 74.29%
Expected dividends 0.00%
Expected term in years 6 years 1 month 10 days
Risk-free rate 1.53%