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Business Segment and Geographic Area Information (Details) - USD ($)
 3 Months Ended 6 Months Ended
Nov. 30, 2025
Nov. 30, 2024
Nov. 30, 2025
Nov. 30, 2024
Segment Reporting Information [Line Items]        
Segment sales, net $ 8,134,859 $ 7,732,574 $ 14,991,077 $ 13,583,846
Gross profit 5,536,237 5,498,047 10,171,171 9,651,695
Sales and marketing 3,125,270 3,377,760 5,911,139 6,047,231
Professional and consulting 676,730 736,169 1,476,244 1,684,018
Segment non-cash operating income 4,633,166 4,825,176 8,856,362 9,119,526
Depreciation and amortization     129,601 47,335
Stock-based compensation     380,234 602,464
Income from Operations 903,071 672,871 1,314,809 532,169
Hearing enhancement and protection [Member]        
Segment Reporting Information [Line Items]        
Segment sales, net [1] 7,755,912 7,448,029 14,335,578 12,747,792
Cost of sales [1] 2,458,177 2,123,489 4,543,789 3,526,093
Gross profit [1] 5,297,735 5,324,540 9,791,789 9,221,699
Sales and marketing 2,954,864 3,122,445 5,569,193 5,689,850
Compensation and related taxes 336,990 266,305 541,518 446,877
Professional and consulting 400,377 441,492 904,667 1,015,652
General and administrative 138,596 151,246 283,208 332,051
Total segment expenses adjusted for non-cash items 3,830,827 3,981,488 7,298,586 7,484,430
Segment non-cash operating income 1,466,908 1,343,052 2,493,203 1,737,269
Total Assets [2] 11,450,424 9,670,630 11,450,424 9,670,630
Payments for property and equipment and intangible assets 40,844 65,783 135,341 107,623
Depreciation and amortization 66,581 33,601 127,736 45,657
Hair and skin care [Member]        
Segment Reporting Information [Line Items]        
Segment sales, net [1] 362,947 284,545 639,499 836,054
Cost of sales [1] 140,445 111,038 276,117 406,058
Gross profit [1] 222,502 173,507 363,382 429,996
Sales and marketing 162,237 116,038 307,665 218,104
Compensation and related taxes 10,369 20,445
Professional and consulting 3,255 16,025 3,280
General and administrative 43,966 16,901 59,467 55,810
Total segment expenses adjusted for non-cash items 206,203 146,563 383,157 297,639
Segment non-cash operating income 16,299 26,944 (19,775) 132,357
Total Assets [2] 4,663,135 4,039,069 4,663,135 4,039,069
Payments for property and equipment and intangible assets
Depreciation and amortization 933 839 1,865 1,678
Consolidated [Member]        
Segment Reporting Information [Line Items]        
Segment sales, net [1] 8,118,859 7,732,574 14,975,077 13,583,846
Cost of sales [1] 2,598,622 2,234,527 4,819,906 3,932,151
Gross profit [1] 5,520,237 5,498,047 10,155,171 9,651,695
Sales and marketing 3,117,101 3,238,483 5,876,858 5,907,954
Compensation and related taxes 336,990 276,674 541,518 467,322
Professional and consulting 400,377 444,747 920,692 1,018,932
General and administrative 182,562 168,147 342,675 387,861
Total segment expenses adjusted for non-cash items 4,037,030 4,128,051 7,681,743 7,782,069
Segment non-cash operating income 1,483,207 1,369,996 2,473,428 1,869,626
Depreciation and amortization (67,514) (34,440) (129,601) (47,335)
Stock-based compensation (181,022) (304,600) (380,234) (602,464)
Corporate expenses (347,545) (358,085) (664,729) (687,659)
All other not included in Segments [1] 15,945 15,945
Income from Operations 903,071 672,871 1,314,809 532,169
Total Assets [2] 16,113,559 13,709,699 16,113,559 13,709,699
Payments for property and equipment and intangible assets 40,844 65,783 135,341 107,623
Depreciation and amortization $ 67,514 $ 34,440 $ 129,601 $ 47,335
[1] Results of operations including sales, cost of sales and gross profit relating to our newly incorporated subsidiary have been included in ‘All other not included in segments.’
[2] As of November 30, 2025 and May 31, 2025, Total Assets in the Company's Hearing enhancement and protection segment includes $25,945 and $10,000 related to assets held by the Company’s recently incorporated subsidiary.