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Condensed Statements of Operations - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Operating expenses:        
Research and development $ 714,000 $ 556,000 $ 1,287,000 $ 1,163,000
General and administrative 1,096,000 1,072,000 2,115,000 2,113,000
Total operating expenses 1,810,000 1,628,000 3,402,000 3,276,000
Loss from operations (1,810,000) (1,628,000) (3,402,000) (3,276,000)
Other income:        
Interest income 14,000 2,000 23,000 3,000
Net Loss $ (1,796,000) $ (1,626,000) $ (3,379,000) $ (3,273,000)
Net Loss per share - basic and fully diluted (in dollars per share) $ (0.14) $ (0.17) $ (0.28) $ (0.35)
Weighted average number of shares outstanding - basic and fully diluted (in shares) 12,799,666 9,631,972 12,085,478 9,347,647