| Cash and cash equivalents | |
| Accounts receivable-Roche | |
| Taxes receivable | |
| Deferred tax asset | |
| Prepaid expenses | |
| Total current assets | |
| Patent costs, net | |
| Advanced payment-Roche | |
| Deposits and other assets | |
| Deferred tax asset | |
| Total other assets | |
| Total assets | |
| Accrued compensation-short-term | |
| Deferred revenue-Roche | |
| Accrued expenses | |
| Total current liabilities | |
| Deferred revenue-Roche | |
| Accrued compensation-long-term | |
| Total liabilities | |
| Preferred Stock at $.001 par value per share, 10,000 shares authorized, zero shares issued and outstanding | |
| Common Stock at $.001 par value per share, 60,000 shares authorized, and 22,399 and 22,320 shares issued and outstanding at June 30, 2011 and December 31, 2010, respectively | |
| Additional paid-in capital | |
| Accumulated deficit | |
| Accumulated other comprehensive income | |
| Total stockholders' equity | |
| Total liabilities and stockholders' equity |