STOCK-BASED COMPENSATION (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended						3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Inventory	Dec. 31, 2012 Inventory	Dec. 31, 2011 Inventory	Jun. 30, 2011 Carl A. Pelzel	Dec. 31, 2013 Cost of sales	Dec. 31, 2012 Cost of sales	Dec. 31, 2011 Cost of sales	Dec. 31, 2013 Research and development expense	Dec. 31, 2012 Research and development expense	Dec. 31, 2011 Research and development expense	Dec. 31, 2013 Selling, general and administrative expense	Dec. 31, 2012 Selling, general and administrative expense	Dec. 31, 2011 Selling, general and administrative expense
Stock-based compensation
Compensation expense	$ 6,108	$ 5,070	$ 3,869	$ 0	$ 0	$ 0	$ 400	$ 42	$ 41	$ 68	$ 364	$ 568	$ 668	$ 5,702	$ 4,461	$ 3,133