Purchase Deposit (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Purchase deposit	$ 6,860,868	$ 8,549,315
Shenzhen Wuxing Commercial & Trade Co.
Purchase deposit	5,435,989	7,135,266
Shenzhen Nanxin Communication Equipment Co., Ltd.
Purchase deposit	791,264	785,583
Shenzhen Futian District Longchengfa Electronic Co., Ltd.
Purchase deposit	$ 633,012	$ 628,466

Carrying value of capitalized payments made in advance for inventory that is expected to be received within one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 8

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.8)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant