Stock Based Compensation	6 Months Ended
Jun. 30, 2019
Share-based Payment Arrangement [Abstract]
Stock Based Compensation	7. Stock Based Compensation The Company recognizes share-based compensation at the fair value of the equity instrument on the grant date. Compensation expense is recognized over the required service period. Share-based compensation expenses were $285,938 and $138,829 for the three months ended June 30, 2019 and 2018, respectively. Share-based compensation expenses were $497,697 and $307,180 for the six months ended June 30, 2019 and 2018, respectively. As of June 30, 2019, there was a total of $1,374,198 of unrecognized compensation cost, adjusted for estimated forfeitures, related to non-vested share-based payments granted to the Company’s employees. As of that date, the remaining unamortized expense is expected to be recognized over a weighted average period of approximately three years.

Stock Based Compensation

6 Months Ended

Jun. 30, 2019

Share-based Payment Arrangement [Abstract]

7. Stock Based Compensation

The Company recognizes share-based compensation at the fair value of the equity instrument on the grant date. Compensation expense is recognized over the required service period. Share-based compensation expenses were $285,938 and $138,829 for the three months ended June 30, 2019 and 2018, respectively. Share-based compensation expenses were $497,697 and $307,180 for the six months ended June 30, 2019 and 2018, respectively.

As of June 30, 2019, there was a total of $1,374,198 of unrecognized compensation cost, adjusted for estimated forfeitures, related to non-vested share-based payments granted to the Company’s employees. As of that date, the remaining unamortized expense is expected to be recognized over a weighted average period of approximately three years.