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v3.21.2

Consolidated Statements of Cash Flows - USD ($) | 9 Months Ended
--- | ---
Aug. 31, 2021 | Aug. 31, 2020
Cash flows from operating activities: |  |
Net income | $ 2,720,713 | $ 2,424,771
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization expense | 711,905 | 284,689
Loss on disposal of property and equipment |  | 1,032
Change in fair value of contingent consideration | (604,109) | (169,741)
Losses on marketable securities | 14,352 | 133,250
Compensatory element of stock options | 233,869 | 450,746
Provision for doubtful accounts | 271,460 | 501,312
Loss on extinguishment of revenue sharing agreements |  | 1,070,900
Amortization of debt issuance costs | 47,462 | 67,010
Amortization of operating lease right-of-use asset | 211,434 | 197,079
Changes in assets and liabilities: |  |
Accounts receivable | 602,187 | (907,531)
Prepaid expenses | 98,618 | (99,169)
Inventory | 301,489 | 237,728
Other current assets | (104,999) | (26,635)
Deposits and other assets, net | (24,716) | (52,103)
Accounts payable | 41,728 | (469,160)
Accrued expenses | (1,393,462) | (757,318)
Operating lease liability | (206,729) | (196,939)
Deferred revenue | 3,337,417 | 2,799,957
Net cash provided by operating activities | 6,258,619 | 5,489,878
Cash flows from investing activities: |  |
Purchases of property and equipment | (1,554,004) | (52,396)
Purchase of patent option agreement |  | (350,000)
Payment of Duke License Agreement | (5,106,224) |
Liquidation of marketable securities |  | 708,087
Net cash (used in) provided by investing activities | (6,660,228) | 305,691
Cash flows from financing activities: |  |
Extinguishment of revenue sharing agreements |  | (1,900,000)
Repayments of note payable | (3,325,000) | (2,324,998)
Proceeds from the exercise of stock options | 1,066,290 | 41,000
Payment of Cord:Use earnout |  | (45,000)
Net cash used in financing activities | (2,258,710) | (4,228,998)
Change in cash and cash equivalents | (2,660,319) | 1,566,571
Cash and cash equivalents - beginning of period | 10,361,125 | 6,541,037
Cash and cash equivalents - end of period | 7,700,806 | 8,107,608
Supplemental non-cash operating activities: |  |
Operating lease liability and right-of-use asset due to adoption of ASC 842 |  | $ 562,775
Lease liability arising from right-of-use asset | 904,691 |
Patent option agreement credit to purchase of patents and licenses | 500,000 |
Liabilities incurred for the purchase of patents and licenses | 11,315,894 |
Taxes payable upon net exercise of stock options | 142,167 |
Supplemental financing activities: |  |
Stock issued for the purchase of patents and licenses | $ 3,585,172 |

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