Stockholders Equity (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
2017 Plan [Member]
Total stock-based compensation, other	$ 31		$ 31
Total stock-based compensation	245	$ (452)	409	$ (251)
Total income tax benefit recognized for stock-based compensation arrangements	51	(95)	86	(52)
Restricted Stock Program
Total stock-based compensation	199	$ (452)	349	$ (251)
Stock Options
Total stock-based compensation	$ 15		$ 29