CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN CAPITAL DEFICIENCY (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013
Beginning Balance			$ (26,946)		$ (3,357)
Share-based compensation related to stock options			190		645
Share-based compensation related to restricted stock award			387		1,854
Exercise of options granted to employees			43		30
Net loss for the period	(6,119)	(6,837)	(13,464)		(11,158)
Ending Balance	(39,790)	(11,986)	(39,790)		(11,986)
Common Stock [Member]
Beginning Balance			94		93
Beginning Balance (in shares)			93,551,098		93,489,809
Share-based compensation related to stock options
Share-based compensation related to restricted stock award
Share-based compensation related to restricted stock award (in shares)					(1,667)
Exercise of options granted to employees				[1]	1
Exercise of options granted to employees (in shares)			55,362		21,480
Net loss for the period
Ending Balance	94	94	94		94
Ending Balance (in shares)	93,606,460	93,509,622	93,606,460		93,509,622
Additional paid-in Capital [Member]
Beginning Balance			184,345		180,145
Share-based compensation related to stock options			190		645
Share-based compensation related to restricted stock award			387		1,854
Exercise of options granted to employees			43		29
Net loss for the period
Ending Balance	184,965	182,673	184,965		182,673
Accumulated Deficit [Member]
Beginning Balance			(211,385)		(183,595)
Share-based compensation related to stock options
Share-based compensation related to restricted stock award
Exercise of options granted to employees
Net loss for the period			(13,464)		(11,158)
Ending Balance	$ (224,849)	$ (194,753)	$ (224,849)		$ (194,753)

[1] Represents amount less than thousand