PRODUCT AND GEOGRAPHIC INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Product Revenues	$ 76,150	$ 87,315	$ 156,179	$ 181,885
Services net revenues	33,617	37,329	73,174	77,741
Total net revenues	109,767	124,644	229,353	259,626
Revenues	109,767	124,644	229,353	259,626
Video products and solutions net revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Product Revenues	42,830	55,496	89,947	115,574
Audio products and solutions net revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Product Revenues	33,320	31,819	66,232	66,311
United States [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	41,917	44,653	87,079	89,732
Revenues	41,917	44,653	87,079	89,732
Other Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	6,623	10,131	14,172	24,610
Revenues	6,623	10,131	14,172	24,610
Europe, Middle East and Africa [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	47,000	54,098	96,253	109,522
Revenues	47,000	54,098	96,253	109,522
Asia-Pacific [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	14,227	15,762	31,849	35,762
Revenues	$ 14,227	$ 15,762	$ 31,849	$ 35,762