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Consolidated Statements of Cash Flows (USD $) | 12 Months Ended
--- | ---
Nov. 30, 2013 | Nov. 30, 2012
Cash flows from operating activities: |  |
Net Income (Loss) | $ 27,436 | $ (6,308,470)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |
Depreciation and amortization expense | 394,502 | 466,736
Abandonment of patents | 378,837 | 52,536
Loss on sale of property and equipment | 44,428 |
Compensatory element of stock options | 271,961 | 1,325,196
Provision for doubtful accounts | 816,464 | 746,007
Equity in losses of affiliate | 154,051 | 154,564
Loss on extinguishment of revenue sharing agreements |  | 1,595,606
Deferred income tax expense |  | 1,718,919
Changes in assets and liabilities: |  |
Accounts receivable | (1,316,135) | (1,063,337)
Notes receivable | 564,723 | 540,971
Prepaid expenses and other current assets | 14,210 | 118,105
Deposits and other assets, net | 31,140 | (32,535)
Accounts payable | (15,148) | 199,036
Accrued expenses | (1,116,947) | 801,891
Deferred consulting obligation |  | (72,183)
Deferred revenue | 572,458 | 117,859
Net cash provided by operating activities | 821,980 | 360,901
Cash flows from investing activities: |  |
Release of restricted cash held in escrow | 1,608,714 | 123,156
Purchases of property and equipment | (349,784) | (133,538)
Purchases of marketable securities and other investments | (24,250) | (13,660)
Proceeds from sale of marketable securities and other investments |  | 1,008,404
Investments in patents | (47,525) | (22,006)
Loan to Saneron | (37,693) |
Net cash provided by investing activities | 1,149,462 | 962,356
Cash flows from financing activities: |  |
Extinguishment of revenue sharing agreements |  | (3,248,000)
Treasury stock purchases | (738,618) | (1,702,970)
Proceeds from the exercise of stock options | 14,950 |
Net cash used in financing activities | (723,668) | (4,950,970)
Increase (decrease) in cash and cash equivalents | 1,247,774 | (3,627,713)
Cash and cash equivalents - beginning of period | 2,677,382 | 6,305,095
Cash and cash equivalents - end of period | $ 3,925,156 | $ 2,677,382

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- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + 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 Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 + 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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