Property and equipment (Details) (USD $)	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Property, Plant and Equipment, Gross, Total	$ 3,413,073	$ 3,404,627
Less: accumulated depreciation	(544,119)	(424,559)
Property and equipment, net	2,868,954	2,980,068
Telecommunication Equipment [Member]
Property, Plant and Equipment, Useful Life	7 years
Property, Plant and Equipment, Gross, Total	356,154	356,154
Computer Equipment [Member]
Property, Plant and Equipment, Useful Life	5 years
Property, Plant and Equipment, Gross, Total	169,754	166,408
Building [Member]
Property, Plant and Equipment, Useful Life	35 years
Property, Plant and Equipment, Gross, Total	2,448,364	2,448,364
Building Improvements [Member]
Property, Plant and Equipment, Useful Life	10 years
Property, Plant and Equipment, Gross, Total	86,442	81,342
Office Equipment and Furnishing [Member]
Property, Plant and Equipment, Useful Life	7 years
Property, Plant and Equipment, Gross, Total	48,212	48,212
Purchased Software [Member]
Property, Plant and Equipment, Useful Life	3 years
Property, Plant and Equipment, Gross, Total	34,147	34,147
Land [Member]
Property, Plant and Equipment, Gross, Total	$ 270,000	$ 270,000