Other Current Liabilities

12 Months Ended

Dec. 31, 2017

Other Liabilities Disclosure [Abstract]

Other Liabilities Disclosure [Text Block]

11. Other Current Liabilities

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

	DECEMBER 31,
	2017		2016
Carrier service costs	$	7,339,150	$	5,514,978
Salaries and payroll taxes		1,259,331		1,374,835
Inventory purchases, consultants and other costs		762,770		986,013
Severance costs		328,109		-
U.S. income tax payable (receivable)		8,850		(42,896)
Foreign income tax payable		(1,860)		1,872
Contingent consideration (Note 4)		100,000		-
Accrued expenses	$	9,796,350	$	7,834,802