Condensed Consolidated Statements of Comprehensive Income Unaudited - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ 3,553	$ 5,867	$ (1,145)	$ 2,800
Other comprehensive income:
Pension adjustments (net of tax expense of $120 and $45 for Three Months Ended July 31, 2020 and 2019, respectively. Net of tax expense of $240 and $91 for Six Months Ended July 31, 2020 and 2019, respectively)	345	130	690	260
Net comprehensive (loss) income	$ 3,898	$ 5,997	$ (455)	$ 3,060