Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022	Jan. 31, 2023
Operating Profit (Loss)	$ 3,730	$ 1,795	$ 5,668	$ 3,243
Total assets	147,435		147,435		$ 142,327
Intersegment [Member]
Net sales	(12,020)	(15,190)	(22,100)	(24,390)
Operating Profit (Loss)	(330)	(720)	760	110
Total Segment [Member]
Net sales	33,070	28,180	61,770	55,460
External sales	33,070	28,180	61,770	55,460
Intersegment sales	12,020	15,190	22,100	24,390
Operating Profit (Loss)	3,730	5,670	1,800	3,240
Total assets	147,440	142,170	147,440	142,170
USA
Net sales	16,550	13,430	30,160	25,680
External sales	15,210	11,900	27,490	23,130
Intersegment sales	1,320	1,530	2,660	2,550
Operating Profit (Loss)	1,160	(1,240)	(650)	(3,300)
Total assets	70,180	64,330	70,180	64,330
Mexico
Net sales	2,370	1,500	3,610	2,740
External sales	1,090	1,060	1,890	1,910
Intersegment sales	1,280	440	1,720	830
Operating Profit (Loss)	(470)	(70)	(860)	(610)
Total assets	5,540	5,320	5,540	5,320
Canada
Net sales	2,030	2,260	4,560	4,530
External sales	2,040	2,260	4,560	4,530
Intersegment sales	0	0	10	0
Operating Profit (Loss)	210	320	660	950
Total assets	7,620	5,810	7,620	5,810
Other Foreign [Member]
Net sales	3,220	2,430	6,300	4,620
External sales	1,970	1,830	4,240	3,640
Intersegment sales	1,250	600	2,070	980
Operating Profit (Loss)	560	(70)	1,220	140
Total assets	9,760	9,240	9,760	9,240
Europe UK
Net sales	5,400	1,880	9,420	3,850
External sales	5,310	1,880	9,330	3,850
Intersegment sales	90	0	90	0
Operating Profit (Loss)	380	(360)	590	(620)
Total assets	11,420	12,530	11,420	12,530
Asia
Net sales	10,910	19,320	22,030	33,980
External sales	2,960	6,740	6,630	13,980
Intersegment sales	7,960	12,580	15,400	20,000
Operating Profit (Loss)	1,030	3,400	1,880	5,950
Total assets	32,150	35,640	32,150	35,640
Latin America
Net sales	4,610	2,550	7,790	4,450
External sales	4,490	2,510	7,630	4,420
Intersegment sales	120	40	150	30
Operating Profit (Loss)	1,190	540	2,070	840
Total assets	$ 10,770	$ 9,300	$ 10,770	$ 9,300