| Net loss | |
| Depreciation and amortization | 16.53M |
| Loss on disposal of fixed assets | |
| Employee & director stock-based compensation | 4.69M |
| Stock warrant expense - noncash | |
| Convertible note fair value adjustment | |
| Prepaid expenses, deposits and other assets | |
| Accounts payable and accrued liabilities | |
| Net cash (used in) operating activities | |
| Purchase of fixed assets | -3.18M |
| Net cash (used in) investing activities | |
| Proceeds from common stock option exercises | 1.36M |
| Proceeds from issuance of common stock by registered direct offerings | |
| Net cash provided by financing activities | |
| NET (DECREASE) INCREASE CASH AND CASH EQUIVALENTS | -138.53M |
| CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 154.68M |
| CASH AND CASH EQUIVALENTS AT END OF PERIOD | 16.16M |
| Interest paid | 2.16M |
| Purchase of fixed assets on account, non-cash investing activity | 102K |