SEGMENT REPORTING (Details ) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Jan. 31, 2020
Operating profit	$ 6,238	$ 12,370
Total [Member]
Net sales	34,100	45,580
External sales	34,100	45,580
Intersegment sales	14,510	13,290
Operating profit	6,240	12,370
Total assets less intersegment	145,050		$ 139,920
USA [Member]
Net sales	16,410	24,130
External sales	15,700	23,110
Intersegment sales	710	1,020
Operating profit	270	4,330
Total assets less intersegment	52,810		52,310
Other Foreign [Member]
Net sales	2,460	3,040
External sales	1,580	2,300
Intersegment sales	880	740
Operating profit	570	1,230
Total assets less intersegment	8,650		8,370
Europe (UK) [Member]
Net sales	4,400	3,010
External sales	4,400	3,010
Operating profit	1,600	460
Total assets less intersegment	11,880		11,330
Mexico [Member]
Net sales	1,810	1,820
External sales	1,550	1,370
Intersegment sales	260	450
Operating profit	50	220
Total assets less intersegment	5,660		5,620
Asia [Member]
Net sales	18,190	20,020
External sales	5,640	9,050
Intersegment sales	12,550	10,970
Operating profit	3,350	4,510
Total assets less intersegment	49,930		47,290
Canada [Member]
Net sales	1,780	4,310
External sales	1,780	4,310
Operating profit	470	1,130
Total assets less intersegment	7,820		8,030
Latin America [Member]
Net sales	3,560	2,540
External sales	3,450	2,430
Intersegment sales	110	110
Operating profit	900	570
Total assets less intersegment	8,300		$ 6,970
Intersegment [Member]
Net sales	(14,510)	(13,290)
Operating profit	$ (970)	$ (80)