Other Current Assets and Accrued Expenses (Tables)

6 Months Ended

Jun. 30, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Other Current Assets [Table Text Block]

Other current assets consisted of the following as of the periods presented below:

	JUNE 30,		DECEMBER 31,
	2018		2017
	(Unaudited)
Inventories	$	168,187	$	157,058
Prepaid rent, insurance and other assets		627,187		610,886
Total other current assets	$	795,374	$	767,944

Schedule of Accrued Liabilities [Table Text Block]

Accrued expenses consisted of the following as of the periods presented below:

	JUNE 30,			DECEMBER 31,
	2018			2017
	(Unaudited)
Carrier service costs	$	7,305,010		$	7,339,150
Salaries and payroll taxes		1,246,767			1,259,331
Inventory purchases, consultants and other costs		743,464			762,770
Severance costs		10,673			328,109
U.S. income tax payable		11,350			8,850
Foreign income tax (receivable)		(1,790	)		(1,860	)
Contingent consideration (Note 3)		-			100,000
Total accrued expenses	$	9,315,474		$	9,796,350