Segment Reporting (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
External sales	$ 27,280	$ 34,100
Fire [Member]
External sales	2,690	1,900
Disposables [Member]
External sales	14,500	19,700
Gloves [Member]
External sales	540	450
High Visibility [Member]
External sales	1,600	1,300
High Performance Wear [Member]
External sales	1,370	860
Wovens [Member]
External sales	1,470	1,630
Chemical [Member]
External sales	$ 5,110	$ 8,260