STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIENCY) (USD $)
In Thousands, except Share data
Common Stock [Member]
Additional Paid-In Capital [Member]
Deferred Stock - based compensation [Member]
Deficit accumulated during the development stage [Member]
Total
Balance at Sep. 22, 2000 $ 0 $ 0 $ 0 $ 0 $ 0
Stock issued on September 22, 2000 for cash at $0.00188 per share 1 16 0 0 17
Stock issued on September 22, 2000 for cash at $0.00188 per share (in shares) 8,500,000        
Stock issued on March 31, 2001 for cash at $0.0375 per share 0 [1] 60 0 0 60
Stock issued on March 31, 2001 for cash at $0.0375 per share (in shares) 1,600,000        
Contribution of capital 0 8 0 0 8
Net loss 0 0 0 (17) (17)
Balance at Mar. 31, 2001 1 84 0 (17) 68
Balance (in shares) at Mar. 31, 2001 10,100,000        
Contribution of capital 0 11 0 0 11
Net loss 0 0 0 (26) (26)
Balance at Mar. 31, 2002 1 95 0 (43) 53
Balance (in shares) at Mar. 31, 2002 10,100,000        
Contribution of capital 0 15 0 0 15
Net loss 0 0 0 (47) (47)
Balance at Mar. 31, 2003 1 110 0 (90) 21
Balance (in shares) at Mar. 31, 2003 10,100,000        
2-for-1 stock split 0 [1] 0 0 0 0
2-for-1 stock split (in shares) 10,100,000        
Stock issued on August 31, 2003 to purchase mineral option at $0.065 per share 0 [1] 6 0 0 6
Stock issued on August 31, 2003 to purchase mineral option at $0.065 per share (in shares) 100,000        
Stock cancelled during period value 0 [1] 0 [1] 0 0 0
Stock cancelled during period shares (in shares) (10,062,000)        
Contribution of capital 0 [1] 15 0 0 15
Net loss 0 0 0 (73) (73)
Balance at Mar. 31, 2004 1 131 0 (163) (31)
Balance (in shares) at Mar. 31, 2004 10,238,000        
Stock granted during period value share based compensation 0 [1] 17,506 0 0 17,506
Stock granted during period shares share based compensation (in shares) 2,025,000        
Stock-based compensation related to shares and options granted to directors and employee 0 5,979 (5,979) 0 0
Stock cancelled during period value 0 [1]   0 0 0
Stock cancelled during period shares (in shares) (1,800,000)        
Stock issued on June 24, 2004 for private placement at $0.01 per share, net of $25,000 issuance expenses 0 [1] 60 0 0 60
Stock issued on June 24, 2004 for private placement at $0.01 per share, net of $25,000 issuance expenses (in shares) 8,510,000        
Contribution of capital 0 7 0 0 7
Stock issued during period value for private placement 0 [1] 1,418 0 0 1,418
Stock issued during period value for private placement (in shares) 1,894,808        
Amortization of deferred stock-based compensation related to options and shares granted to employees and directors 0 0 584 0 584
Net loss 0 0 0 (18,840) (18,840)
Balance at Mar. 31, 2005 1 25,101 (5,395) (19,003) 704
Balance (in shares) at Mar. 31, 2005 20,867,808        
Stock granted during period value share based compensation 0 [1] 662 0 0 662
Stock granted during period shares share based compensation (in shares) 934,904        
Stock-based compensation related to shares and options granted to directors and employee 0 [1] 486 (486) 0 0
Stock-based compensation related to shares and options granted to directors and employees (in shares) 200,000        
Amortization of deferred stock-based compensation related to options and shares granted to employees and directors 0 51 1,123 0 1,174
Stock issued on May 12, 2005 for private placement at $0.80 per share 0 [1] 149 0 0 149
Stock issued on May 12, 2005 for private placement at $0.80 per share (in shares) 186,875        
Stock issued on July 27, 2005 for private placement at $0.60 per share 0 [1] 99 0 0 99
Stock issued on July 27, 2005 for private placement at $0.60 per share (in shares) 165,000        
Stock issued on September 30, 2005 for private placement at $0.80 per share 0 [1] 225 0 0 225
Stock issued on September 30, 2005 for private placement at $0.80 per share (in shares) 312,500        
Stock issued on December 7, 2005 for private placement at $0.80 per share 0 [1] 135 0 0 135
Stock issued on December 7, 2005 for private placement at $0.80 per share (in shares) 187,500        
Forfeiture of options granted to employees 0 (3,363) 3,363 0 0
Reclassification due to application of ASC 815-40-25 (formerly EITF 00-19) 0 (7,906)     (7,906)
Beneficial conversion feature related to convertible loans 0 164 0 0 164
Net loss 0 0 0 (3,317) (3,317)
Balance at Mar. 31, 2006 1 15,803 (1,395) (22,320) (7,911)
Balance (in shares) at Mar. 31, 2006 22,854,587        
Stock granted during period value share based compensation 0 453 0 0 453
Stock granted during period shares share based compensation (in shares) 1,147,225        
Stock-based compensation related to shares and options granted to directors and employee 0 [1] 1,168 0 0 1,168
Stock-based compensation related to shares and options granted to directors and employees (in shares) 200,000        
Reclassification due to application of ASC 815-40-25 (formerly EITF 00-19) 0 7,191 0 0 7,191
Beneficial conversion feature related to convertible loans 0 1,086 0 0 1,086
Elimination of deferred stock compensation due to implementation of ASC 718-10 (formerly SFAS 123(R)) 0 (1,395) 1,395 0 0
Warrants issued to convertible note holder 0 11 0 0 11
Warrants issued to loan holder 0 110 0 0 110
Net loss 0 0 0 (3,924) (3,924)
Balance at Dec. 31, 2006 1 24,427 0 (26,244) (1,816)
Balance (in shares) at Dec. 31, 2006 24,201,812        
Stock granted during period value share based compensation   1,446 0 0 1,446
Stock granted during period shares share based compensation (in shares) 544,095        
Stock-based compensation related to shares and options granted to directors and employee 0 [1] 1,232 0 0 1,232
Stock-based compensation related to shares and options granted to directors and employees (in shares) 200,000        
Exercise of warrants 0 [1] 214 0 0 214
Exercise of warrants (in shares) 3,832,621        
Stock issued during period value for private placement 1 1,999 0 0 2,000
Stock issued during period value for private placement (in shares) 11,500,000        
Beneficial conversion feature related to convertible loans 0 407 0 0 407
Warrants issued to convertible note holder 0 109 0 0 109
Conversion of convertible loans 0 [1] 224 0 0 224
Conversion of convertible loans (in shares) 725,881        
Net loss 0 0 0 (6,244) (6,244)
Balance at Dec. 31, 2007 2 30,058 0 (32,488) (2,428)
Balance (in shares) at Dec. 31, 2007 41,004,409        
Stock granted during period value share based compensation 0 33 0 0 33
Stock granted during period shares share based compensation (in shares) 90,000        
Stock-based compensation related to shares and options granted to directors and employee 0 731 0 0 731
Exercise of options 0 [1] 3 0 0 3
Exercise of options (in shares) 17,399        
Exercise of warrants 0 [1] 0 0 0 0
Exercise of warrants (in shares) 1,860,000        
Stock issued during period value for private placement 1 1,499 0 0 1,500
Stock issued during period value for private placement (in shares) 8,625,000        
Conversion of convertible loans 0 [1] 1,276 0 0 1,276
Conversion of convertible loans (in shares) 3,644,610        
Subscription of shares for private placement 0 281 0 0 281
Net loss 0 0 0 (3,472) (3,472)
Balance at Dec. 31, 2008 3 33,881 0 (35,960) (2,076)
Balance (in shares) at Dec. 31, 2008 55,241,418        
Stock granted during period value share based compensation 0 [1] 775 0   775
Stock granted during period shares share based compensation (in shares) 5,284,284        
Stock-based compensation related to shares and options granted to directors and employee 0 409 0 0 409
Exercise of warrants 0 [1] 0 0 0 0
Exercise of warrants (in shares) 3,366,783        
Stock issued during period value for private placement 1 0 0 0 1
Stock issued during period value for private placement (in shares) 9,916,667        
Conversion of convertible loans 0 [1] 200 0 0 200
Conversion of convertible loans (in shares) 2,500,000        
Subscription of shares for private placement 0 729 0 0 729
Net loss 0 0 0 (1,781) (1,781)
Balance at Dec. 31, 2009 4 35,994 0 (37,741) (1,743)
Balance (in shares) at Dec. 31, 2009 76,309,152        
Stock granted during period value share based compensation 0 96 0 0 96
Stock granted during period shares share based compensation (in shares) 443,333        
Stock-based compensation related to shares and options granted to directors and employee 0 388 0 0 388
Stock-based compensation related to shares and options granted to directors and employees (in shares) 466,667        
Conversion of convertible note 0 135 0 0 135
Conversion of convertible note (in shares) 402,385        
Exercise of options 0 77 0 0 77
Exercise of options (in shares) 1,540,885        
Exercise of warrants   11 0 0 11
Exercise of warrants (in shares) 3,929,446        
Issuance of shares on account of previously subscribed shares 0 0 0 0 0
Issuance of shares on account of previously subscribed shares (in shares) 2,000,001        
Stock issued during period value for private placement 1 1,750 0 0 1,751
Stock issued during period value for private placement (in shares) 7,250,000        
Conversion of convertible loans 0 189 0 0 189
Conversion of convertible loans (in shares) 1,016,109        
Issuance of shares for public offering 0 400 0 0 400
Issuance of shares for public offering (in shares) 2,475,000        
Conversion of trade payable to stock   201 0 0 201
Subscription of shares for private placement   455 0 0 455
Net loss       (2,419) (2,419)
Balance at Dec. 31, 2010 5 39,696 0 (40,160) (459)
Balance (in shares) at Dec. 31, 2010 95,832,978        
Stock granted during period value share based compensation 0 449 0 0 449
Stock granted during period shares share based compensation (in shares) 474,203        
Stock-based compensation related to shares and options granted to directors and employee 0 1,135 0 0 1,135
Stock-based compensation related to shares and options granted to directors and employees (in shares) 2,025,040        
Conversion of convertible note 0 140 0 0 140
Conversion of convertible note (in shares) 755,594        
Exercise of options 0 243 0 0 243
Exercise of options (in shares) 1,648,728        
Exercise of warrants 0 272 0 0 272
Exercise of warrants (in shares) 1,046,834        
Issuance of shares for private placement 1 3,601 0 0 3,602
Issuance of shares for private placement (in shares) 14,160,933        
Issuance of shares on account of previously subscribed shares 0 24 0 0 24
Issuance of shares on account of previously subscribed shares (in shares) 10,499,999        
Net loss 0 0 0 (3,918) (3,918)
Balance at Dec. 31, 2011 6 45,560 0 (44,078) 1,488
Balance (in shares) at Dec. 31, 2011 126,444,309        
Stock granted during period value share based compensation 0 208 0 0 208
Stock granted during period shares share based compensation (in shares) 794,423        
Stock-based compensation related to stock and options granted to directors and employees 0 440 0 0 440
Stock-based compensation related to shares and options granted to directors and employees (in shares) 885,000        
Exercise of options 0 137 0   137
Exercise of options (in shares) 1,182,606       1,182,606
Exercise of warrants 0 9 0   9
Exercise of warrants (in shares) 959,729        
Issuance of shares for public offering 1 5,027 0 0 5,028
Issuance of shares for public offering (in shares) 19,818,968        
Net loss 0 0 0 (2,851) (2,851)
Balance at Sep. 30, 2012 $ 7 $ 51,381 $ 0 $ (46,929) $ 4,459
Balance (in shares) at Sep. 30, 2012 150,085,035        
[1] Represents an amount less than $1.