| 2010 | 2009 | |
| Reconciliation of net operating loss to net cash from operating activities | ||
| Operating loss | $ (22,276,081) | $ (26,942,064) |
| Adjustments to reconcile operating loss to net cash from operating activities: | ||
| Depreciation expense | 4,914,432 | 3,407,432 |
| Changes in assets and liabilities: | ||
| Receivables, net | (195,122) | 3,288,223 |
| Inventory and other current assets | (50,902) | 2,504 |
| Accounts payable and accrued liabilities | (433,076) | 1,428,436 |
| Accrued compensated absences | 257,015 | 29,772 |
| Other current liabilities | (80,630) | 12,399 |
| Deferred revenue | 402,755 | 399,254 |
| Net cash from operating activities | $ (17,461,609) | $ (18,374,044) |
22.