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v3.25.3

Consolidated Statements of Cash Flows - USD ($) | 9 Months Ended
--- | ---
Aug. 31, 2025 | Aug. 31, 2024
Cash flows from operating activities: |  |
Net income | $ 1,388,048 | $ 2,263,710
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization expense | 742,231 | 444,850
Impairment of investment - Tianhe stock | 0 | 308,000
Loss on sale of property and equipment | 48,304 | 0
Losses (gains) on marketable securities | 604,619 | (1,056,052)
Unrealized gain on interest rate swap contract | 0 | (105,887)
Compensatory element of stock options | 374,198 | 631,435
Provision for doubtful accounts | 780,197 | 918,488
Amortization of debt issuance costs | 15,657 | 15,967
Amortization of operating lease right-of-use asset | 295,654 | 237,299
Changes in assets and liabilities: |  |
Accounts receivable | (304,483) | (1,215,889)
Prepaid expenses | 19,125 | 102,898
Inventory | 79,730 | 209,209
Other current assets | 109,604 | (26,529)
Deposits and other assets, net | (92,144) | (51,553)
Accounts payable | 741,407 | (293,685)
Accrued expenses | (3,525,297) | (2,490,236)
Operating lease liability | (317,744) | (175,633)
Other liabilities | 0 | 3,829
Deferred revenue | 3,238,687 | 4,133,696
Net cash from operating activities | 4,197,793 | 3,853,917
Cash flows from investing activities: |  |
Purchases of property and equipment | (163,249) | (2,395,360)
Sale of property and equipment | 115,000 | 0
Payment of Duke license agreement | 0 | (1,066,667)
Proceeds from liquidation of marketable securities | 0 | 101,873
Purchases of marketable securities | (3,160,145) | (1,759,828)
Sale of marketable securities | 2,522,711 | 1,358,732
Net cash used in investing activities | (685,683) | (3,761,250)
Cash flows used in financing activities: |  |
Treasury stock purchases | (169,502) | (1,423,871)
Repayments of note payable | (110,235) | (106,428)
Repayment of line of credit | (7,120,000) | (2,200,000)
Proceeds from the exercise of stock options | 23,101 | 1,002
Proceeds from line of credit | 6,800,000 | 3,200,000
Dividends paid | (3,231,227) | 0
Proceeds from Swap termination | 0 | 228,000
Net cash used in financing activities | (3,807,863) | (301,297)
Decrease in cash and cash equivalents | (295,753) | (208,630)
Cash and cash equivalents - beginning of period | 560,960 | 406,067
Cash and cash equivalents - end of period | 265,207 | 197,437
Supplemental non cash operating activities |  |
Lease liability arising from right-of-use asset | 396,163 | 100,932
Supplemental investing activities: |  |
Construction costs payable | 0 | (880,348)
Supplemental cash flow information |  |
Interest | 1,533,485 | 1,482,909
Income taxes | $ 2,833,737 | $ 2,385,096

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