Segment Reporting (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
External sales	$ 28,180	$ 27,470	$ 55,460	$ 61,560
Chemical [Member]
External sales	7,160	5,600	12,270	13,860
Fire [Member]
External sales	2,980	2,520	5,670	4,420
Disposables [Member]
External sales	12,720	15,190	27,220	34,890
Gloves [Member]
External sales	550	1,700	1,090	3,320
High Visibility [Member]
External sales	1,340	590	2,940	1,040
High Performance Wear [Member]
External sales	1,110	1,010	2,480	1,870
Wovens [Member]
External sales	$ 2,320	$ 860	$ 3,790	$ 2,160