Quarterly report pursuant to Section 13 or 15(d)

Commitments - Schedule of Classification of Lease Liabilities (Detail)

v3.19.2
Commitments - Schedule of Classification of Lease Liabilities (Detail) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Operating lease liabilities:    
Current portion of lease liabilities $ 625,541
Long-term portion of lease liabilities $ 3,399,926