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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Cash flows from operating activities:  
Net income (loss)$ 3,729,513$ (11,649,358)
Adjustments to reconcile net income (loss) to net cash used in operating activities:  
Depreciation and amortization1,117,7031,179,380
Common stock issued for services 399,466
Common stock issued for interest19,634 
Common stock issued for research and development9034,024
Non-cash interest expense upon conversion of convertible notes 802,190
Accretion of discount on convertible notes payable250,0023,251,360
Capitalized interest on convertible note 1,131,836
Stock based compensation2,072,993879,570
Loss on sale of assets362 
Loss on extinguishment of Debt954,033 
Gain on derivative liability valuation(12,257,500)(240,100)
Loss on sale of securities available for sale 49,264
Warrants issued for interest157,400 
Warrants issued for debt extinguishment costs404,000 
Allowance for doubtful accounts1,414(38,904)
Changes in assets and liabilities:  
Decrease (increase) in accounts receivable(68,607)279,020
Decrease (increase) in inventories(54,399)42,295
Decrease in debt offering costs 1,648,620
Decrease in prepaid and other assets126,70420,393
Increase (decrease) in accounts payable and accrued expenses(485,735)259,419
Decrease in deferred revenues(103,629)(10,909)
Net cash used in operating activities(4,135,209)(1,992,434)
Cash flows from investing activities:  
Purchase of equipment(422,978)(190,173)
Proceeds from the sale of auction rate preferred securities 225,000
Proceeds from the sale of assets240 
Net cash provided by investing activities(422,738)34,827
Cash flows from financing activities:  
Proceeds from the sale of common stock 1,335,000
Proceeds from the exercise of options and warrants18,304 
Principal payments on debt(1,151,439)(1,304,658)
Equity issuance costs(24,078) 
Proceeds from notes payable 1,975,000
Net cash provided (used) by financing activities(1,157,213)2,005,342
Net increase (decrease) in cash and cash equivalents(5,715,160)47,735
Cash and cash equivalents, beginning of period6,129,632263,492
Cash and cash equivalents, end of period414,472311,227
Supplemental disclosure of cash flow information:  
Interest paid244,966369,591
Income taxes paid