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Consolidated Statements of Cash Flows (Unaudited) (USD $) | 9 Months Ended
--- | ---
Aug. 31, 2014 | Aug. 31, 2013
Statement of Cash Flows [Abstract] |  |
Net Income | $ 849,457 | $ 194,782
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization expense | 287,010 | 300,311
Abandonment of patents | 25,649 | 378,837
Loss on sale of property and equipment | 0 | 44,428
Compensatory element of stock options | 255,380 | 225,177
Provision for doubtful accounts | 913,235 | 583,182
Equity in losses of affiliate | 242,318 | 115,475
Changes in assets and liabilities: |  |
Accounts receivable | (1,527,397) | (319,521)
Notes receivable | 550,782 |
Prepaid expenses and other current assets | 105,045 | 136,719
Deposits and other assets, net | 52,628 | 28,400
Accounts payable | (156,306) | 34,929
Accrued expenses | (657,576) | (1,232,887)
Deferred revenue | 371,511 | 353,993
Net cash provided by operating activities | 1,311,736 | 843,825
Cash flows from investing activities: |  |
Release of restricted cash held in escrow | 764,045 | 1,156,030
Purchases of property and equipment | (93,478) | (239,381)
Purchases of marketable securities and other investments, net | (84,753) | (18,480)
Investments in patents | 0 | (34,525)
Investment in affiliate | (150,000) |
Net cash provided by investing activities | 435,814 | 863,644
Cash flows from financing activities: |  |
Treasury stock purchases | (2,294,631) | (672,066)
Proceeds from the exercise of stock options | 70,902 | 14,950
Net cash used in financing activities | (2,223,729) | (657,116)
(Decrease) increase in cash and cash equivalents | (476,179) | 1,050,353
Cash and cash equivalents - beginning of period | 3,925,156 | 2,677,382
Cash and cash equivalents - end of period | 3,448,977 | 3,727,735
Supplemental non-cash disclosure: |  |
Disposition of Cryo-Cell common stock held by Saneron, increase in investment | $ 74,764 |

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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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