Segment Reporting (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Net sales	$ 35,020	$ 27,470	$ 80,600	$ 52,160
Disposables [Member]
Net sales	23,780	14,300	54,990	26,660
Chemical [Member]
Net sales	6,190	5,560	15,070	10,620
Fire [Member]
Net sales	1,670	2,430	3,120	3,830
Gloves [Member]
Net sales	540	840	1,320	1,590
High Visability [Member]
Net sales	950	2,620	2,300	5,610
HiPW [Member]
Net sales	530	430	820	660
Wovens [Member]
Net sales	$ 1,360	$ 1,290	$ 2,980	$ 3,190