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CONDENSED STATEMENTS OF CASH FLOWS - USD ($)
 3 Months Ended
May 31, 2025
May 31, 2024
CASH FLOWS FROM OPERATING ACTIVITIES    
Net loss $ (1,075,200) $ (1,279,000)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation and amortization 366,100 486,600
Deferred income taxes (390,600) (138,800)
Provision for credit losses 12,000 29,600
Provision for inventory valuation allowance 36,000 40,700
Share-based compensation expense - net 0 100,800
Net loss on sale of assets 57,000 3,700
Changes in assets and liabilities:    
Accounts receivable 113,700 (407,200)
Inventories - net 2,611,900 2,820,700
Prepaid expenses and other assets (47,800) (13,800)
Accounts payable (329,000) (217,200)
Accrued salaries and commissions and other liabilities (166,400) (427,400)
Deferred revenues (26,300) (132,700)
Income taxes payable/receivable 235,100 335,600
Total adjustments 2,471,700 2,480,600
Net cash provided by operating activities 1,396,500 1,201,600
CASH FLOWS FROM INVESTING ACTIVITIES    
Purchases of property, plant and equipment (207,400) (112,200)
Proceeds from sale of assets 45,000 4,000
Net cash used in investing activities (162,400) (108,200)
CASH FLOWS FROM FINANCING ACTIVITIES    
Payments on term debt (450,000) (450,000)
Sales of treasury stock 0 8,600
Net borrowings under line of credit 0 100,000
Net cash used in financing activities (450,000) (341,400)
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH 784,100 752,000
CASH, CASH EQUIVALENTS AND RESTRICTED CASH - BEGINNING OF PERIOD 976,500 1,277,400
CASH, CASH EQUIVALENTS AND RESTRICTED CASH - END OF PERIOD 1,760,600 2,029,400
SUPPLEMENTAL DISCLOSURE OF CASH FLOWS INFORMATION    
Cash paid for interest 468,300 582,500
Cash (received)/paid for income taxes - net of refunds $ (218,600) $ 18,400