Significant Customers (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
VTech Holdings Ltd [Member]
Significant Customers (Textual) [Abstract]
Percentage of sales revenues from distributors	38.00%	34.00%	36.00%	33.00%
Tomen Electronics Corporation [Member]
Significant Customers (Textual) [Abstract]
Percentage of sales revenues from distributors	23.00%	17.00%	22.00%	18.00%
Panasonic Communications Co Ltd [Member]
Significant Customers (Textual) [Abstract]
Percentage of sales revenues from distributors	17.00%	12.00%	16.00%	12.00%
Uniden America Corp. [Member]
Significant Customers (Textual) [Abstract]
Percentage of sales revenues from distributors	11.00%	14.00%	13.00%	13.00%
CCT Telecom Holdings Ltd [Member]
Significant Customers (Textual) [Abstract]
Percentage of sales revenues from distributors	6.00%	10.00%	6.00%	11.00%