Subsequent Events (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Business Acquisition [Line Items]
Total consideration	$ 1,500,000		$ 1,500,000
Subsequent Events (Textual) [Abstract]
Restructuring expense			100,000
Cash dividend per share	$ 0.03	$ 0.00	$ 0.06	$ 0.00
PCTEL, Inc. [Member]
Business Acquisition [Line Items]
Membership interest	30.00%		30.00%
The purchase price	800,000		800,000
Tel Worx Communications LLC [Member]
Business Acquisition [Line Items]
The purchase price	16,500,000		16,500,000
Total consideration	$ 18,000,000,000		$ 18,000,000,000
Number Of Employees Retained In Acquisition	46		46