| Current assets: |
| Cash and cash equivalents |
35.53M |
| Marketable securities |
| State research and development credit exchange receivable - current |
| Prepaid expenses and other current assets |
4.53M |
| Total current assets |
48.6M |
| Property and equipment - net |
46.83M |
| State research and development credit exchange receivable - net of current portion |
| Other assets |
702K |
| Total |
96.13M |
| Current liabilities: |
| Accounts payable |
5.09M |
| Accrued expenses and other current liabilities |
14.16M |
| Total current liabilities |
105.83M |
| Senior convertible notes |
27.63M |
| Note payable to related party |
49.52M |
| Total liabilities |
334.82M |
| Commitments and contingencies |
0 |
| Stockholders' deficit: |
| Undesignated preferred stock, $0.01 par value - 10,000,000 shares authorized; no shares issued or outstanding at June 30, 2011 and December 31, 2010 |
0 |
| Common stock, $0.01 par value - 250,000,000 and 200,000,000 shares authorized at June 30, 2011 and December 31, 2010, respectively; 130,905,582 and 127,793,178 shares issued and outstanding at June 30, 2011 and December 31, 2010, respectively |
4.78M |
| Additional paid-in capital |
2.55B |
| Accumulated other comprehensive income |
-21K |
| Deficit accumulated during the development stage |
| Total stockholders' deficit |
-238.69M |
| Total |
96.13M |
