Net loss per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (5,084)	$ (3,909)
Weighted average shares outstanding - basic (shares)	16,033,000	15,824,000
Net effect of dilutive share-based on the treasury stock method using average market price (shares)	0	0
Totals (shares)	16,033,000	15,824,000
Net income (loss) per share - basic (usd per share)	$ (0.32)	$ (0.25)
Net income (loss) per share - diluted (usd per share)	$ (0.32)	$ (0.25)
Antidilutive shares (shares)	169,000	155,000