Organization and Principal Activities (Details Textual)	3 Months Ended
	Mar. 31, 2013
ACL International Holdings Limited [Member]
Entity Incorporation, State Country Name	Hong Kong
Ownership interest	100.00%
ATMD (Hong Kong) Limited [Member]
Entity Incorporation, State Country Name	Hong Kong
Business Acquisition, Effective Date of Acquisition	Apr. 01, 2012
Ownership interest	30.00%
Atlantic Components Limited [Member]
Entity Incorporation, State Country Name	Hong Kong
Business Acquisition, Effective Date of Acquisition	Sep. 30, 2003
Ownership interest	100.00%
Jussey Investments Limited [Member]
Entity Incorporation, State Country Name	British Virgin Islands
Business Acquisition, Effective Date of Acquisition	Sep. 28, 2012
Ownership interest	100.00%
eVision Telecom Limited [Member]
Entity Incorporation, State Country Name	Hong Kong
Business Acquisition, Effective Date of Acquisition	Sep. 28, 2012
Ownership interest	100.00%
USmart Electronic Products Limited [Member]
Entity Incorporation, State Country Name	Hong Kong
Business Acquisition, Effective Date of Acquisition	Sep. 28, 2012
Ownership interest	80.00%
Dongguan Kezheng Electronics Limited [Member]
Entity Incorporation, State Country Name	PRC
Business Acquisition, Effective Date of Acquisition	Sep. 28, 2012
Ownership interest	80.00%
Usmart [Member]
Entity Incorporation, State Country Name	Delaware
Business Acquisition, Effective Date of Acquisition	Sep. 17, 2002