Equity Investment in GBT Technologies, S.A. (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Current assets	$ 6,912,821				$ 6,912,821		$ 6,231,628
Total assets	42,606,674				42,606,674		24,545,683
Current liabilities	118,544,279				118,544,279		10,029,294
Total liabilities	128,544,279				128,544,279		10,029,294
Total stockholders' equity	(85,937,605)	$ 11,875,361	$ 7,736,671	$ 6,188,577	(85,937,605)	$ 7,736,671	$ 14,516,389	$ 4,221,841
Revenue	12,431,774		13,466,410		25,825,087	21,371,016
Operating expenses	2,010,459		7,623,377		6,322,030	21,732,533
Net loss	(109,645,375)	$ (8,105,860)	$ (7,494,705)	$ (14,108,022)	(117,751,235)	$ (21,602,727)
GBT-CR
Current assets	1,394,228				1,394,228
Total assets	8,617,758				8,617,758
Current liabilities	726,350				726,350
Total liabilities	4,358,132				4,358,132
Total stockholders' equity	$ 4,259,626				4,259,626
Revenue					1,412,599
Operating expenses					2,054,246
Other expenses					1,394,421
Net loss					$ (2,036,068)