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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) | 6 Months Ended
--- | ---
Apr. 30, 2014 | Apr. 30, 2013
Reconciliation of net loss to net cash used in operating activities: |  |
Net loss | $ (6,863,871) | $ (4,571,440)
Stock option compensation to employees | 989,407 | 1,027,832
Stock option compensation to consultants | 887,699 | 427,128
Common stock issued to consultants | 35,148 | 51,875
Common stock issued to pay interest on convertible debentures | 61,778 | 34,761
Amortization of patents | 151,840 |
Amortized interest on patent acquisition obligations to interest expense | 186,234 |
Amortization of convertible debenture discount to interest expense | 446,565 | 801,125
Loss on extinguishment of debt | 482,915 |
Change in value of derivative liability | 2,310,704 | (210,000)
Common stock issued to acquire patent license |  | 42,000
Other | (1,403) | 35,809
Change in operating assets and liabilities: |  |
Accounts receivable | (653,367) |
Prepaid expenses and other current assets | 26,463 | 3,715
Accounts payable and accrued expenses | (14,749) | 508,858
Royalties and contingent legal fees payable | 274,803 |
Other liabilities |  | 45,600
Net cash used in operating activities | (1,679,834) | (1,802,737)
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 | 650,000 | 500,000
Other | (1,329) | 421
Net cash (used in) provided by investing activities | (2,051,329) | 500,421
Cash flows from financing activities: |  |
Proceeds from issuance of convertible debentures | 3,500,000 | 1,765,000
Proceeds from sale of common stock |  | 458,325
Proceeds from exercise of warrants to purchase common stock | 149,985 |
Proceeds from exercise of employee stock options | 725 | 13,050
Payments to redeem convertible debentures | (200,000) |
Net cash provided by financing activities | 3,450,710 | 2,236,375
Net (decrease) increase in cash and cash equivalents | (280,453) | 934,059
Cash and cash equivalents at beginning of year | 898,172 | 339,693
Cash and cash equivalents at end of period | 617,719 | 1,273,752
Supplemental disclosure of financing activities: |  |
Fair value of debenture embedded conversion feature at date of issuance | 1,570,000 | 1,180,000
Relative fair value of warrants issued with convertible debentures | $ 513,112 | $ 214,819

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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References No definition available. + Details
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- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Value of stock issued pursuant to acquisitions during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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