v3.26.1
Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
May 31, 2026
May 31, 2025
Cash Flows from Operating Activities:    
Net loss $ (8,235,576) $ 2,351,010
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities -    
Gain on Involuntary Conversions (Note 5) 0 (741,821)
(Gain) loss on disposition of assets 8,985 (43,027)
Depreciation and amortization 6,050,746 5,772,850
Change in deferred taxes (774,535) 947,391
Effects of changes in operating assets and liabilities:    
Trade accounts receivable 2,391,614 540,387
Other accounts receivable 0 2,107,108
Related parties receivable (138,579) (625,313)
Inventory 1,031,329 387,588
Operating leases 23,904 26,464
Prepaid expenses (868) 28,511
Accounts payable and accrued expenses (1,840,040) 354,282
Deferred revenue 0 (817,981)
Net cash (used in) provided by operating activities (1,483,020) 10,287,449
Cash Flows from Investing Activities:    
Purchase of property, plant and equipment (1,973,041) (5,753,429)
Proceeds from disposal of property, plant and equipment 0 50,000
Net cash used in investing activities (1,973,041) (5,703,429)
Cash Flows from Financing Activities:    
Principal payments on long-term debt and financing leases (1,322,726) (2,383,786)
Advances under revolving loan 2,200,000 0
Payments for retirement of preferred stock 0 (5,000,000)
Repurchase of common stock (123,147) (606,737)
Repurchase and retirement of common stock 0 (420,000)
Dividends paid on preferred stock (1,610) (427,103)
Net cash provided by (used in) financing activities 2,422,941 (8,837,626)
Net Decrease in Cash (1,033,120) (4,253,606)
Cash, beginning of period 1,545,035 5,798,641
Cash, end of period 511,915 1,545,035
Financing Obligation [Member]    
Cash Flows from Financing Activities:    
Proceeds from finance obligation $ 1,670,424 $ 0