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Stock-Based Compensation - Schedule of Stock Option Activity (Details)
9 Months Ended
Sep. 30, 2017
USD ($)
$ / shares
shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Number of shares outstanding, beginning | shares 1,128,368
Number of shares granted | shares 353,500
Number of shares exercised | shares (14,407)
Number of shares forfeited | shares (380,838)
Number of shares outstanding, ending | shares 1,086,623
Number of shares exercisable | shares 428,721
Weighted average exercise price outstanding, beginning | $ / shares $ 5.12
Weighted average exercise price granted | $ / shares 4.78
Weighted average exercise price exercised | $ / shares 1.31
Weighted average exercise price forfeited | $ / shares 4.99
Weighted average exercise price outstanding, ending | $ / shares 5.11
Weighted average exercise price exercisable | $ / shares $ 5.47
Weighted average remaining contractual life outstanding, beginning 7 years
Weighted average remaining contractual life outstanding, ending 8 years
Weighted average remaining contractual life exercisable 7 years
Aggregate intrinsic value, beginning | $ $ 514,439
Aggregate intrinsic value, ending | $ 500
Aggregate intrinsic value, exercisable | $ $ 344