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Statements of Operations (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Co-development revenue $ 0us-gaap_TechnologyServicesRevenue $ 93,000us-gaap_TechnologyServicesRevenue
Cost of co-development revenue 0us-gaap_TechnologyServicesCosts 88,000us-gaap_TechnologyServicesCosts
Gross profit 0us-gaap_GrossProfit 5,000us-gaap_GrossProfit
Operating expenses:    
Research and development 2,217,000us-gaap_ResearchAndDevelopmentExpense 1,851,000us-gaap_ResearchAndDevelopmentExpense
General and administrative 5,084,000us-gaap_GeneralAndAdministrativeExpense 3,450,000us-gaap_GeneralAndAdministrativeExpense
Total operating expenses 7,301,000us-gaap_OperatingExpenses 5,301,000us-gaap_OperatingExpenses
Loss from operations (7,301,000)us-gaap_OperatingIncomeLoss (5,296,000)us-gaap_OperatingIncomeLoss
Other income:    
Interest income 5,000us-gaap_InvestmentIncomeInterest 11,000us-gaap_InvestmentIncomeInterest
Net Loss $ (7,296,000)us-gaap_NetIncomeLoss $ (5,285,000)us-gaap_NetIncomeLoss
Net Loss per share - basic and fully diluted (in dollars per share) $ (0.77)us-gaap_EarningsPerShareBasicAndDiluted $ (0.60)us-gaap_EarningsPerShareBasicAndDiluted
Weighted average number of shares outstanding - basic and fully diluted (in shares) 9,507,185us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted 8,795,810us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted