OPERATING SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 operating_segment	Sep. 30, 2011	Dec. 31, 2011	Jun. 30, 2011
Segment Reporting Information [Line Items]
number of operating segments			2
Net sales	$ 8,235	$ 8,888	$ 24,374	$ 23,551
Operating Income (Loss)	216	63	(550)	(2,037)
Assets	22,958		22,958		24,668	24,668
Electronic devices [Member]
Segment Reporting Information [Line Items]
Net sales	6,124	5,803	17,480	15,130
Operating Income (Loss)	942	838	2,289	1,324
Assets	16,305		16,305			16,188
Communications equipment [Member]
Segment Reporting Information [Line Items]
Net sales	2,111	3,085	6,894	8,421
Operating Income (Loss)	(72)	(112)	(550)	(783)
Assets	6,030		6,030			7,262
Corporate and other costs [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	(654)	(663)	(2,289)	(2,578)
Corporate and other assets [Member]
Segment Reporting Information [Line Items]
Assets	$ 623		$ 623			$ 873