CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 12 Months Ended 159 Months Ended 162 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Mar. 31, 2014
Operating costs and expenses:            
Research and development, net $ 680 $ 522 $ 2,917 $ 1,770 $ 29,106 [1] $ 29,786
General and administrative 351 559 2,101 1,748 20,852 [1] 21,203
Total operating costs and expenses 1,031 1,081 5,018 3,518 49,958 [1] 50,989
Financial expenses (income), net 1,080 1 (144) (93) 2,310 [1] 3,390
Other income 0 0 0 0 (132) [1] (132)
Operating loss 2,111 1,082 4,874 3,425 52,136 [1] 54,247
Taxes on income 0 0 25 5 107 [1] 107
Loss from continuing operations 2,111 1,082 4,899 3,430 52,243 [1] 54,354
Net loss from discontinued operations 0 0 0 0 164 [1] 164 [2]
Net loss $ 2,111 $ 1,082 $ 4,899 $ 3,430 $ 52,407 [1] $ 54,518 [2]
Basic and diluted net loss per share from continuing operations (in dollars per share) $ 0.01 $ 0.01 $ 0.03 $ 0.02 $ 0 [1]  
Weighted average number of shares outstanding used in computing basic and diluted net loss per share (in shares) 176,305,587 150,953,117 161,071,968 137,596,391 0 [1]  
[1] Out of which, $163, relating to the period from inception to March 31 2004, is unaudited.
[2] Out of the which, cash flows used in discontinued operating activities of $36, cash flows used in discontinued investing activities of $16 and cash flows provided in discontinued financing activities of $57, relating to the period from inception to March 31, 2004, is unaudited.