| Net income | |
| Depreciation | 603K |
| Gain on sale of property and equipment | |
| Stock-based compensation expense | 1.89M |
| Recognition of gain on sale of products | |
| Income tax receivable | -2.78M |
| Prepaid expenses and other assets | 33K |
| Restricted cash | |
| Accounts payable and other liabilities | -1.36M |
| Deferred revenue | 0 |
| Net cash provided by operating activities | |
| Purchases of marketable securities | -70.26M |
| Sales and maturities of marketable securities | 94.69M |
| Proceeds from sale of products | |
| Purchases of property and equipment | -923K |
| Proceeds from sale of property and equipment | |
| Net cash provided by (used in) investing activities | |
| Proceeds from issuances of common stock | 3.76M |
| Net cash provided by financing activities | |
| Net increase in cash and cash equivalents | |
| Cash and cash equivalents at beginning of period | 15.5M |
| Cash and cash equivalents at end of period | 35.64M |
| Income taxes paid in cash during the period | |