Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Investment securities, available for sale	$ 13,442,107	$ 12,724,020
Earn-out milestone liability	13,085,849	12,538,525
Fair Value, Measurements, Recurring [Member]
Investment securities, available for sale	13,442,107	12,724,020
Earn-out milestone liability	13,085,849	12,538,525
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities, available for sale	13,442,107	12,724,020
Earn-out milestone liability
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities, available for sale
Earn-out milestone liability
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities, available for sale
Earn-out milestone liability	$ 13,085,849	$ 12,538,525