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Note 13 - Segment Reporting - Schedule of Segment Reporting (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 31, 2025
Jan. 31, 2024
Net sales $ 158,384 $ 150,668
Total Cost of sales 105,136 109,210
General and administrative expenses 28,000 22,591
Selling expense 4,947 5,508
Total operating expenses 32,947 28,099
Income from operations 20,301 13,359
Interest expense (1,940) (2,266)
Other income (expense) 107 (1,202)
Income before income tax 18,468 9,891
Income tax expense (benefit) 5,377 (3,320)
Net income 13,091 13,211
Less: Net income attributable to non-controlling interest 4,108 2,740
Net income 8,983 10,471
Operating Segments [Member]    
Net sales 158,384 150,668
Labor 23,109 19,048
Materials 59,036 64,973
Depreciation and amortization 3,104 3,562
Other costs of sales 19,887 21,627
Total Cost of sales 105,136 109,210
Salaries and wages 16,295 14,043
Depreciation and amortization 516 196
Other general and administrative expense 11,189 8,352
General and administrative expenses 28,000 22,591
Selling expense 4,947 5,508
Total operating expenses 32,947 28,099
Income from operations 20,301 13,359
Interest expense 1,940 2,266
Other income (expense) 107 (1,202)
Income before income tax 18,468 9,891
Income tax expense (benefit) 5,377 (3,320)
Net income 13,091 13,211
Less: Net income attributable to non-controlling interest 4,108 2,740
Net income $ 8,983 $ 10,471