Annual report [Section 13 and 15(d), not S-K Item 405]

Consolidated Statements of Cash Flows

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Consolidated Statements of Cash Flows - USD ($)
 3 Months Ended 12 Months Ended
Nov. 30, 2024
Nov. 30, 2023
Nov. 30, 2024
Nov. 30, 2023
Nov. 30, 2022
Cash flows from operating activities:          
Net income (loss)     $ 402,095 $ (9,521,669)  
Adjustments to reconcile net income to net cash provided by operating activities:          
Depreciation and amortization expense     693,847 1,399,667  
Impairment of public inventory $ 0 $ 3,737,133 0 3,737,133  
Impairment of investment - Tianhe stock     308,000 0  
Impairment of assets   13,108,064 0 13,108,064  
Change in fair value of contingent consideration     2,794 (1,050,978) $ (1,050,978)
Gains on marketable securities     (1,076,051) (50,777)  
Unrealized gain on interest rate swap contract     (105,887) (122,113)  
Compensatory element of stock options     781,128 816,639  
Provision for doubtful accounts     1,266,905 1,036,390  
Deferred income tax benefit     (309,274) (6,750,350)  
Amortization of debt issuance costs     21,237 21,631  
Amortization of operating lease right-of-use asset     327,750 310,744  
Changes in assets and liabilities:          
Accounts receivable     (1,999,759) (1,568,689)  
Prepaid expenses     (21,648) (48,850)  
Inventory     429,178 360,445  
Other current assets     (64,648) 36,929  
Deposits and other assets, net     (69,142) (99,267)  
Accounts payable     (423,720) 688,935  
Accrued expenses     639,063 1,582,135  
Operating lease liability     (245,169) (271,232)  
Deferred revenue     5,454,211 5,304,967  
Net cash from operating activities     6,010,910 8,919,754  
Cash flows from investing activities:          
Purchases of property and equipment     (2,403,708) (6,838,969)  
Payment of Duke license agreement     (1,200,000) (799,999)  
Proceeds from liquidation of marketable securities     101,873 179,306  
Purchases of marketable securities     (2,891,423) (1,082,923)  
Sale of marketable securities     1,516,359 397,831  
Net cash used in investing activities     (4,876,899) (8,144,754)  
Cash flows used in financing activities:          
Treasury stock purchases     (1,423,871) (799,036)  
Repayments of note payable     (136,382) (156,355)  
Repayment of line of credit     (2,922,728) (2,000,000)  
Proceeds from the exercise of stock options     76,402 0  
Proceeds from line of credit     5,220,000 950,000  
Dividends paid     (2,020,539) 0  
Proceeds from Swap termination     228,000 0  
Payment of Cord:Use earnout     0 (67,500)  
Net cash used in financing activities     (979,118) (2,072,891)  
Increase (decrease) in cash and cash equivalents     154,893 (1,297,891)  
Cash and cash equivalents - beginning of period     406,067 1,703,958  
Cash and cash equivalents - end of period $ 560,960 $ 406,067 560,960 406,067 $ 1,703,958
Supplemental non-cash operating activities:          
Lease liability arising from right-of-use asset     100,932 737,867  
Supplemental investing activities:          
Construction costs payable     (880,348) 880,348  
Supplemental cash flow information:          
Interest     1,976,808 1,808,751  
Income taxes     $ 2,716,993 $ 1,820,802