CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (CAPITAL DEFICIENCY) (USD $) In Thousands, except Share data, unless otherwise specified		Total	Common Stock	Additional paid-in capital	Accumulated deficit
Beginning Balance at Dec. 31, 2010		$ (11,323)	$ 81	$ 124,044	$ (135,448)
Beginning Balance (in shares) at Dec. 31, 2010	[1]		81,248,472
Changes during the three-month period
Common stock issued for cash (net of issuance costs of $1,780 in 2012 and $1,410 in 2011) (in shares)	[1]		4,000,000
Common stock issued for cash (net of issuance costs of $1,780 in 2012 and $1,410 in 2011)		20,590	4	20,586
Share-based compensation		242		242
Exercise of options granted to employees and non-employees (in shares)	[1]		329,475
Exercise of options granted to employees and non-employees		248	1	247
Net loss for the period		(5,052)			(5,052)
Ending Balance at Mar. 31, 2011		4,705	86	145,119	(140,500)
Ending Balance (in shares) at Mar. 31, 2011	[1]		85,577,947
Beginning Balance at Dec. 31, 2011		(26,077)	86	145,814	(171,977)
Beginning Balance (in shares) at Dec. 31, 2011	[1]		85,630,157
Changes during the three-month period
Common stock issued for cash (net of issuance costs of $1,780 in 2012 and $1,410 in 2011) (in shares)	[1]		5,175,000
Common stock issued for cash (net of issuance costs of $1,780 in 2012 and $1,410 in 2011)		25,388	5	25,383
Share-based compensation		129		129
Exercise of options granted to employees and non-employees (in shares)	[1]		17,095
Exercise of options granted to employees and non-employees		7		7
Net loss for the period		(5,904)			(5,904)
Ending Balance at Mar. 31, 2012		$ (6,457)	$ 91	$ 171,333	$ (177,881)
Ending Balance (in shares) at Mar. 31, 2012	[1]		90,822,252

[1] Common Stock, $0.001 par value; Authorized - as of March 31, 2012 and March 31, 2011 - 150,000,000 shares.