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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) | 9 Months Ended
--- | ---
Sep. 30, 2011 | Sep. 30, 2010
Cash flows from operating activities: |  |
Net loss | $ (27,728,736) | $ (13,040,282)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Common stock, stock options and warrants issued as payment for compensation, services rendered and interest expense | 8,164,814 | 7,399,842
Depreciation and amortization | 6,754,953 | 2,556,994
Loss on short term investments |  | 7,215
Amortization of preferred stock discount and issuance cost | 1,903,703 |
Changes in fair value of derivative liability | (1,661,049) |
Write off of acquired in-process research and development | 1,150,000 |
Loss on disposal of assets | 396,635 |
Non-cash interest expense | 328,425 |
Charitable contributions paid with common stock | 607,363 |
Bad debt expense | 50,024 | 16,311
Deferred income taxes | (678,211) | (182,417)
Changes in operating assets and liabilities, net of the effect of acquisitions: |  |
Prepaid expenses and other current assets | (647,674) | (461,743)
Accounts receivable | (2,489,064) | 1,278,573
Inventory | 3,136,189 | (1,405,838)
Unearned revenues | (1,361,697) | (392,040)
Other assets | (2,014,566) | (128,225)
Accounts payable, accrued expenses and other current liabilities | (3,433,540) | 1,175,902
Net cash used in operating activities | (17,522,431) | (3,175,708)
Cash flows from investing activities: |  |
Cash received in acquisition of PCT | 227,942 |
Purchase of short-term investments | (27) | (2,424,132)
Proceeds from short-term investments |  | 2,452,015
Acquisition of property and equipment | (5,453,931) | (12,510,648)
Net cash used in investing activities | (3,127,902) | (11,019,055)
Cash flows from financing activities: |  |
Net proceeds from the exercise of options and warrants | 7,100 | 3,101,850
Net proceeds from issuance of capital stock | 21,167,682 | 13,138,948
Payment from related party | 644,414 | 566,775
Repayment of mortgage loan | (109,492) |
Proceeds of bank loan | 6,149,000 |
Repayment of bank loan | (1,557,000) | (2,203,650)
Proceeds from notes payable | 10,950,616 | 13,256,799
Repayment of notes payable | (17,154,753) | (16,644,465)
Repayment of debt to related party | (3,406,043) |
Repayment of preferred stock | (175,000) |
Payment of dividend |  | (222,924)
Net cash provided by financing activities | 16,516,524 | 10,993,333
Impact of changes of foreign exchange rates | 234,756 | 108,754
Net (decrease)/increase in cash and cash equivalents | (3,899,053) | (3,092,676)
Cash and cash equivalents at beginning of year | 15,612,391 | 7,159,369
Cash and cash equivalents at end of period | 11,713,338 | 4,066,693
Cash paid during the period for: |  |
Interest | 1,238,400 | 219,376
Taxes | 1,463,100 | 1,784,325
Supplemental Schedule of non-cash investing activities |  |
Acquisition of property and equipment |  | 348,488
Capitalized interest | 235,700 | 307,200
Supplemental schedule of non-cash financing activities |  |
Common stock and warrants issued with the acquisition of PCT | 17,200,000 |
Common stock issued pursuant to the redemption of Convertible Redeemable Series E 7% Preferred Stock | 2,785,400 |
Common stock issued in payment of dividends for the Convertible Redeemable Series E 7% Preferred Stock | 622,500 |
Financing costs for capital stock raises |  | 75,466
Conversion of Convertible Redeemable Series C Preferred Stock |  | 13,720,048
Dividend to Related Party reinvested as loan payable | 11,726,100 |
Notes payable |  |
Cash flows from investing activities: |  |
Change in restricted cash used as collateral | 2,098,114 |
Bank loans |  |
Cash flows from investing activities: |  |
Change in restricted cash used as collateral |  | $ 1,463,710

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