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Schedule of segment data (Details) - USD ($)
 3 Months Ended
May 31, 2025
May 31, 2024
Segment Reporting Information [Line Items]    
Net Sales $ 5,132,773 $ 5,031,038
Net Sales 2,664,514 2,454,487
Net Sales 668,470 731,430
Net Sales 858,151 897,190
Net Sales 654,525 587,571
Total Operating Expenses 2,181,146 2,216,191
Operating Income 483,368 238,296
Income Before Taxes 603,543 391,311
Income Tax Expense 118,558 60,474
Net Income 484,985 330,837
Operating Segment [Member]    
Segment Reporting Information [Line Items]    
Net Sales 5,133,000 5,031,000
Net Sales 1,872,000 1,951,000
Net Sales 76,000 157,000
Net Sales 50,000 58,000
Net Sales 119,000 112,000
Net Sales 2,117,000 2,278,000
Net Sales 138,000 139,000
Net Sales 37,000 64,000
Net Sales 11,000 (26,000)
Net Sales 98,000 58,000
Net Sales 67,000 64,000
Net Sales 351,000 299,000
Net Sales 2,468,000 2,577,000
Net Sales 2,665,000 2,454,000
Net Sales 474,000 506,000
Net Sales 35,000 47,000
Net Sales 45,000 52,000
Net Sales 66,000 73,000
Net Sales 48,000 53,000
Net Sales 668,000 731,000
Net Sales 473,000 439,000
Net Sales 47,000 448,000
Net Sales 152,000 196,000
Net Sales 29,000 39,000
Net Sales 108,000 106,000
Net Sales 25,000 16,000
Net Sales 60,000 53,000
Net Sales 858,000 897,000
Net Sales 272,000 249,000
Net Sales 45,000 48,000
Net Sales 84,000 109,000
Net Sales 132,000 114,000
Net Sales 75,000 54,000
Net Sales 17,000 17,000
Net Sales 30,000 3,000
Net Sales 655,000 588,000
Total Operating Expenses 2,181,000 2,216,000
Operating Income 484,000 238,000
Interest Income & Unrealized (Loss)/Gain 120,000 153,000
Income Before Taxes 604,000 391,000
Income Tax Expense 119,000 60,000
Net Income $ 485,000 $ 331,000