| Statements Of Operations | |
| Revenues from license fees, grants and research contracts | |
| Operating expenses: | |
| Research and development | |
| General and administrative | |
| Acquired in-process research and development | |
| Operating loss | |
| Other non-operating (loss) income: | |
| Interest (expense) income and other, net | |
| (Increase) decrease on warrant valuation | |
| Realized gain on sale of short-term securities-available-for-sale | |
| Write-down of short-term securities-available-for-sale | |
| Total other non operating income | |
| Net income (loss) and comprehensive income (loss) | |
| Net income (loss) per share - basic | |
| Net income (loss) per share - diluted | |
| Weighted average number of common shares outstanding for computing basic income (loss) per share (in thousands) | |
| Weighted average number of common shares outstanding for computing diluted income (loss) per share (in thousands) |