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Stock-based Compensation and Repurchase Plan (Tables)
6 Months Ended
Jun. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The following assumptions were used:
 
March 1, 2016
Risk-free interest rates
1.81%
Expected lives (in years)
4.0
Expected dividend yield
—%
Expected volatility
70.99%