Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2025	Apr. 30, 2024
Segment Reporting Information [Line Items]
Net sales	$ 35,255	$ 29,838
Costs of sales	26,071	22,375
Gross profit	9,184	7,463
Less
Research and development	73	104
Total operating expenses	7,606	6,690
Income from operations	1,578	773
Interest expense	(88)	(127)
Interest income	30	92
Amortization of debt discount	(3)	(6)
Income tax expense	(280)	(179)
Net income	1,237	553
Reportable Segment
Less
Net income	1,237	553
Reportable Segment | Operating Segments
Segment Reporting Information [Line Items]
Net sales	35,255	29,838
Costs of sales	26,071	22,375
Gross profit	9,184	7,463
Less
Research and development	73	104
Direct Variable Costs	2,433	1,853
Other selling, general, and administrative expenses	5,100	4,733
Total operating expenses	7,606	6,690
Income from operations	1,578	773
Interest expense	(88)	(127)
Interest income	30	92
Amortization of debt discount	(3)	(6)
Income tax expense	(280)	(179)
Net income	1,237	553
Reportable Segment | Adjustments and reconciling items
Less
Net income	$ 0	$ 0