INVESTMENTS Narrative (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Investment [Line Items]
Realized gain on investment	$ 385	$ 0
Fair value of investment	1,066		3,247
Available-for-sale debt security contractual maturity minimum years	10 years
Adjusted Cost	983		3,670
Minimum maturity period of short-term investments as company has the ability and intent to redeem them within the year (in days)	90 days
Auction-rate securities
Investment [Line Items]
Fair value of investment	1,066		1,066
Adjusted Cost	$ 983		$ 983