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v3.20.2

Consolidated Statements of Cash Flows | 6 Months Ended
--- | ---
May 31, 2020 USD ($) | May 31, 2019 USD ($)
Cash flows from operating activities: |  |
Net income | $ 1,640,304 | $ 329,550
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization expense | 190,872 | 208,300
Impairment of public inventory |  | 2,332,763
Loss on disposal of property and equipment | 1,032 |
Change in fair value of contingent consideration | (23,989) | (670,927)
Unrealized (gains) losses on marketable securities | (1,376) | 35,880
Compensatory element of stock options | 288,752 | 225,809
Provision for doubtful accounts | 401,679 | 385,362
Amortization of debt issuance costs | 46,818 | 57,999
Amortization of operating lease right-of-use asset | 131,351 |
Changes in assets and liabilities: |  |
Accounts receivable | (278,805) | (276,700)
Prepaid expenses | (184,615) | (148,766)
Inventory | 293,762 | 10,915
Other current assets | 18,519 | (23,678)
Deposits and other assets, net | (35,340) | 49,145
Accounts payable | (417,259) | (232,654)
Accrued expenses | (146,354) | (1,719,371)
Operating lease liability | (131,185) |
Deferred revenue | 1,643,589 | 1,818,095
Net cash provided by operating activities | 3,437,755 | 2,381,722
Cash flows from investing activities: |  |
Purchases of property and equipment | (50,228) | (408,870)
Net cash used in investing activities | (50,228) | (408,870)
Cash flows from financing activities: |  |
Repayments of note payable | (1,549,999) | (1,549,998)
Proceeds from the exercise of stock options | 41,000 | 5,700
Net cash used in financing activities | (1,508,999) | (1,544,298)
Increase in cash and cash equivalents | 1,878,528 | 428,554
Cash and cash equivalents - beginning of period | 6,541,037 | 6,040,033
Cash and cash equivalents - end of period | 8,419,565 | 6,468,587
Supplemental non-cash operating activities: |  |
Operating lease right-of-use asset recorded due to adoption of ASC 842 | 562,775 |
Operating lease liability recorded due to adoption of ASC 842 | $ 562,775 |
Cumulative-effect adjustment due to the adoption of ASU 2016-01 |  | $ (340,984)

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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration