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Compensatory Equity Incentive Plan and Other Equity Incentives (Details 2) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2017
Dec. 31, 2017
Stock Options    
Balance, beginning, shares   1,096,186
Granted, shares   48,849
Exercised, shares   (46,250)
Cancelled/Forfeited, shares   (23,750)
Balance ending, shares 1,096,186 1,075,035
Balance ending, shares exercisable and vested   860,491
Balance ending, shares unexercisable and unvested 244,511 214,544
Weighted average exercise price - Stock Options    
Balance Beginning   $ 1.68
Granted   4.24
Exercised   2.24
Cancelled/Forfeited   3.10
Balance Ending $ 1.68 1.74
Exercisable - Balance Ending   1.62
Unexercisable/unvested - Balance Ending   $ 2.22
Weighted average remaining contract life - Stock Options    
Balance 6 years 3 months 19 days 6 years 4 months 24 days
Exercisable/vested   6 years 4 months 24 days
Unexercisable/unvested   8 years 8 months 12 days
RSU Shares    
Balance, beginnings   1,508,782
Granted   140,571
Balance, endings 1,508,782 1,649,353
Balance, ending, shares exercisable and vested   1,287,370
Balance, ending, shares unexercisable/unvested 438,912 361,983
Weighted average remaining contract life - Restricted Stock Units 10 months 25 days 10 months 25 days
Weighted average remaining contract life unexercisable/unvested - Restricted Stock Units   10 months 25 days