PRODUCT AND GEOGRAPHIC INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Product Revenues	$ 88,945	$ 105,330	$ 245,124	$ 287,215
Services net revenues	48,491	37,099	121,665	114,840
Total net revenues	137,436	142,429	366,789	402,055
Revenues	137,436	142,429	366,789	402,055
Video products and solutions net revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Product Revenues	62,851	63,275	152,798	178,849
Audio products and solutions net revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Product Revenues	26,094	42,055	92,326	108,366
United States [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	48,146	54,215	135,225	143,947
Revenues	48,146	54,215	135,225	143,947
Other Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	10,212	10,895	24,384	35,505
Revenues	10,212	10,895	24,384	35,505
Europe, Middle East and Africa [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	55,061	58,099	151,314	167,621
Revenues	55,061	58,099	151,314	167,621
Asia-Pacific [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	24,017	19,220	55,866	54,982
Revenues	$ 24,017	$ 19,220	$ 55,866	$ 54,982