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Consolidated Statements of Comprehensive Loss - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Statement of Comprehensive Income [Abstract]    
Net loss $ (11,883,359) $ (20,402,176)
Changes in:    
Realized loss on investment securities recognized in investment income, net 10,164
Unrealized gain (loss) on investment securities 29,872 (10,164)
Other comprehensive income (loss) 40,036 (10,164)
Comprehensive loss $ (11,843,323) $ (20,412,340)