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Stock Option Plans and Stock-Based Compensation - Summary of Non-Vested Restricted Stock (Details) - Restricted Common Stock (Founders Shares)
12 Months Ended
Dec. 31, 2015
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Number of Shares, Non-vested, beginning balance 21,245
Number of Shares, Vested (21,245)