STOCKHOLDERS EQUITY (Details 1) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock-based compensation expense
Stock based compensation expense before income taxes	$ 7,638,000	$ 8,616,000	$ 6,226,000
Income tax benefit	2,753,000	2,570,000	1,690,000
Total stock-based compensation expense, net of income taxes	4,885,000	6,046,000	4,536,000
Cost of product sales
Stock-based compensation expense
Stock based compensation expense before income taxes	502,000	586,000	1,524,000
Research and development
Stock-based compensation expense
Stock based compensation expense before income taxes	1,263,000	1,490,000	850,000
Sales and marketing
Stock-based compensation expense
Stock based compensation expense before income taxes	2,591,000	3,057,000	1,828,000
General and administrative
Stock-based compensation expense
Stock based compensation expense before income taxes	$ 3,282,000	$ 3,483,000	$ 2,024,000