INTANGIBLE ASSETS (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization of Finite-Lived Intangible Assets	$ 400,000	$ 900,000	$ 1,400,000	$ 3,500,000
Amortizing Identifiable Intangible Assets [Abstract]
Gross	113,415,000		113,415,000		114,258,000
Accumulated Amortization	(110,585,000)		(110,585,000)		(109,998,000)
Net	2,830,000		2,830,000		4,260,000
Future expected amortization expense, identifiable intangible assets
2011	400,000		400,000
2012	1,500,000		1,500,000
2013	1,000,000		1,000,000
Completed Technologies and Patents [Member]
Amortizing Identifiable Intangible Assets [Abstract]
Gross	52,195,000		52,195,000		52,711,000
Accumulated Amortization	(52,195,000)		(52,195,000)		(52,659,000)
Net	0		0		52,000
Customer Relationships [Member]
Amortizing Identifiable Intangible Assets [Abstract]
Gross	49,341,000		49,341,000		49,627,000
Accumulated Amortization	(46,522,000)		(46,522,000)		(45,557,000)
Net	2,819,000		2,819,000		4,070,000
Trade Names [Member]
Amortizing Identifiable Intangible Assets [Abstract]
Gross	5,948,000		5,948,000		5,976,000
Accumulated Amortization	(5,948,000)		(5,948,000)		(5,976,000)
Net	0		0		0
Capitalized Software Costs [Member]
Amortizing Identifiable Intangible Assets [Abstract]
Gross	5,931,000		5,931,000		5,944,000
Accumulated Amortization	(5,920,000)		(5,920,000)		(5,806,000)
Net	$ 11,000		$ 11,000		$ 138,000