Stockholders Equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2021	Apr. 30, 2020
2017 Plan [Member]
Total stock-based compensation	$ 336	$ 164
Total income tax benefit recognized for stock-based compensation arrangements	71	34
Stock Option [Member]
Total stock-based compensation	30	14
Restricted Stock Program
Total stock-based compensation	$ 306	$ 149