CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
Net sales	$ 27,466	$ 35,021	$ 61,558	$ 80,603
Cost of goods sold	14,748	17,681	34,454	41,119
Gross profit	12,718	17,340	27,104	39,484
Operating expenses	8,791	7,606	16,939	17,380
Operating profit	3,927	9,734	10,165	22,104
Other income (expense), net	(1)	31	(13)	37
Interest expense	(4)	(2)	(5)	(19)
Income before taxes	3,922	9,763	10,147	22,122
Income tax expense	1,364	424	2,948	4,149
Net income	$ 2,558	$ 9,339	$ 7,199	$ 17,973
Net income per common share:
Basic	$ 0.32	$ 1.17	$ 0.90	$ 2.25
Diluted	$ 0.31	$ 1.16	$ 0.89	$ 2.23
Weighted average common shares outstanding:
Basic weighted	7,982,995	7,976,275	7,964,058	7,974,370
Diluted weighted	8,141,107	8,079,744	8,120,409	8,062,318