CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) (USD $) In Thousands	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2011 Research and Development Expense	Sep. 30, 2010 Selling, General and Administrative Expense	Sep. 30, 2010 Selling, General and Administrative Expense
Settlement of trade debt	$ 15	$ 71	$ 71