Other Current Assets and Accrued Expenses (Details 1) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Carrier service costs	$ 8,215,400	$ 11,832,170
Salaries and payroll taxes	2,125,168	2,774,138
Inventory purchases, consultants and other costs	967,360	1,004,303
Severance costs	7,612	7,612
U.S. income tax payable	22,130	28,130
Foreign income tax payable	16,410	(20,040)
Total accrued expenses	$ 11,354,080	$ 15,626,313