Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Comprehensive Loss

v3.20.1
Consolidated Statements of Comprehensive Loss - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement of Comprehensive Income [Abstract]      
Net loss $ (12,794,493) $ (37,684,424) $ (15,517,658)
Other comprehensive gain (loss):      
Unrealized gain (loss) on available-for-sale securities 30,300 44,520 (23,154)
Comprehensive loss $ (12,764,193) $ (37,639,904) $ (15,540,812)