INVESTMENTS Narrative (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Investment [Line Items]
Realized gain on investment	$ 0	$ 385,000
Available-for-sale debt security contractual maturity minimum years	10 years
Auction-rate securities
Investment [Line Items]
Adjusted Cost	$ 1,000,000