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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) | 3 Months Ended
--- | ---
Jan. 31, 2014 | Jan. 31, 2013
Reconciliation of net loss to net cash used by operating activities: |  |
Net loss | $ (3,614,428) | $ (2,094,987)
Stock option compensation to employees | 465,519 | 473,275
Stock option compensation to consultants | 255,119 | 241,928
Common stock issued to consultants | 28,348 | 25,625
Common stock issued to pay interest on convertible debentures | 28,800 |
Amortization of patents | 70,481 | 0
Amortized interest on patent acquisition obligations to interest expense | 86,466 |
Amortization of convertible debenture discount to interest expense | 217,316 | 5,234
Change in value of derivative liabilities | 1,320,000 |
Other | (2,096) | 33,945
Change in operating assets and liabilities: |  |
Accounts receivable | 175,000 |
Prepaid expenses and other current assets | 19,347 | (11,172)
Accounts payable and accrued expenses | (60,045) | 436,142
Royalties and contingent legal fees payable | (161,858) |
Net cash used by operating activities | (1,172,031) | (890,010)
Cash flows from investing activities: |  |
Disbursements to acquire short-term investments in certificates of deposit | (2,700,000) |
Proceeds from sales of short-term investments in certificates of deposit | 250,000 | 500,000
Other |  | (1,330)
Net cash (used in) provided by investing activities | (2,450,000) | 498,670
Cash flows from financing activities: |  |
Proceeds from issuance of convertible debentures | 3,500,000 | 1,765,000
Net cash provided by financing activities | 3,500,000 | 1,765,000
Net (decrease) increase in cash and cash equivalents | (122,031) | 1,373,660
Cash and cash equivalents at beginning of year | 898,172 | 339,693
Cash and cash equivalents at end of period | 776,141 | 1,713,353
Supplemental disclosure of financing activities: |  |
Stock Issued upon Conversion | 1,570,000 |
Debenture Conversion Feature [Member] |  |
Supplemental disclosure of financing activities: |  |
Stock Issued upon Conversion | 1,570,000 | 1,180,000
Convertible Debenture Warrant [Member] |  |
Supplemental disclosure of financing activities: |  |
Stock Issued upon Conversion | $ 513,122 | $ 214,819

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