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Stock-Based Compensation - Schedule of Stock Option Activity (Details)
6 Months Ended
Jun. 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 319,000
Number of shares exercised | shares (407)
Number of shares forfeited | shares (123,235)
Number of shares outstanding, ending | shares 1,323,726
Number of shares exercisable | shares 625,374
Weighted average exercise price outstanding, beginning | $ / shares $ 5.12
Weighted average exercise price granted | $ / shares 4.85
Weighted average exercise price exercised | $ / shares 3.34
Weighted average exercise price forfeited | $ / shares 5.16
Weighted average exercise price outstanding, ending | $ / shares 5.06
Weighted average exercise price exercisable | $ / shares $ 5.21
Weighted average remaining contractual life outstanding, beginning 7 years
Weighted average remaining contractual life outstanding, ending 6 years 8 months 12 days
Weighted average remaining contractual life exercisable 4 years 6 months
Aggregate intrinsic value, beginning | $ $ 514,439
Aggregate intrinsic value, ending | $ 171,772
Aggregate intrinsic value, exercisable | $ $ 103,011