Investments and Acquisitions (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Net income	$ 2,465	$ (870)		$ 3,785	$ 259
Basic	$ 0.33	$ 0.11		$ 0.52	$ 0.03
Diluted	$ 0.32	$ 0.11		$ 0.50	$ 0.03
Pro forma combined financial information [Member]
Net income		$ (971,000)	$ 2,965,000		$ 168,000	$ 7,964,000
Net sales		$ 28,534,000	$ 28,212,000		$ 56,602,000	$ 63,051,000
Basic		$ (0.13)	$ 0.37		$ 0.02	$ 1.00
Diluted		$ (0.13)	$ 0.36		$ 0.02	$ 0.98