CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
REVENUES	$ 1,132		$ 3,184		$ 6,024		$ 5,466
COMPANY'S SHARE IN COLLABORATION AGREEMENT	(235)		(1,065)		(3,745)		(1,887)
COST OF REVENUES	(220)				(1,130)
GROSS PROFIT	677		2,119		1,149		3,579
RESEARCH AND DEVELOPMENT EXPENSES	(9,340)	[1]	(6,322)	[1]	(28,671)	[1]	(25,647)	[1]
less - grants and reimbursements	1,422		2,776		5,163		5,255
RESEARCH AND DEVELOPMENT EXPENSES, NET	(7,918)		(3,546)		(23,508)		(20,392)
GENERAL AND ADMINISTRATIVE EXPENSES	(1,526)	[2]	(1,421)	[2]	(5,314)	[2]	(4,305)	[2]
OPERATING LOSS	(8,767)		(2,848)		(27,673)		(21,118)
FINANCIAL INCOME (EXPENSES)- NET	(108)		374		57		648
NET LOSS FOR THE PERIOD	$ (8,875)		$ (2,474)		$ (27,616)		$ (20,470)
NET LOSS PER SHARE OF COMMON STOCK - BASIC AND DILUTED:	$ 0.10		$ 0.03		$ 0.33		$ 0.25
WEIGHTED AVERAGE NUMBER OF SHARES OF COMMON STOCK USED IN COMPUTING LOSS PER SHARE:
Basic and diluted	85,585,777		80,914,930		84,351,420		80,879,843

[1] Research and development expenses include share-based compensation of $348 and $431 for the nine-month periods ended September 30, 2011 and September 30, 2010, respectively, and $92 and $213 for the three-month periods ended September 30, 2011 and September 30, 2010, respectively.

[2] General and administrative expenses include share-based compensation of $382 and $456 for the nine-month periods ended September 30, 2011 and September 30, 2010, respectively, and $117 and $142 for the three-month periods ended September 30, 2011 and September 30, 2010, respectively.