GOODWILL AND INTANGIBLE ASSETS (Details 2) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Intangible assets with definite lives
Cost	$ 33,629	$ 33,629
Accumulated Amortization	(33,059)	(32,940)
Total intangible assets with definite lives, net	570	689
Purchase agreements
Intangible assets with definite lives
Cost	236	236
Accumulated Amortization	(200)	(165)
Total intangible assets with definite lives, net	36	71
Purchase agreements | Weighted average
Intangible assets with definite lives
Weighted Average Amortization Life (Years)	5 years	5 years
Technology
Intangible assets with definite lives
Cost	25,194	25,194
Accumulated Amortization	(25,194)	(25,158)
Total intangible assets with definite lives, net	0	36
Technology | Weighted average
Intangible assets with definite lives
Weighted Average Amortization Life (Years)	3 years	3 years
Customer lists
Intangible assets with definite lives
Cost	6,682	6,682
Accumulated Amortization	(6,151)	(6,106)
Total intangible assets with definite lives, net	531	576
Customer lists | Weighted average
Intangible assets with definite lives
Weighted Average Amortization Life (Years)	4 years 2 months 12 days	4 years 2 months 12 days
Other
Intangible assets with definite lives
Cost	1,517	1,517
Accumulated Amortization	(1,514)	(1,511)
Total intangible assets with definite lives, net	$ 3	$ 6
Other | Weighted average
Intangible assets with definite lives
Weighted Average Amortization Life (Years)	2 years 6 months	2 years 6 months