Income Taxes (Tables)

3 Months Ended

Apr. 30, 2022

Income Tax Disclosure [Abstract]

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

A reconciliation of the beginning and ending amount of unrecognized tax benefits, including interest and penalties, is as follows (amounts in thousands):

	Three Months Ended April 30,
	2022		2021
Unrecognized tax benefits, beginning of period	$	16,781	$	8,400
Changes for prior years’ tax positions		88		5
Changes for current year tax positions		-		138
Unrecognized tax benefits, end of period	$	16,869	$	8,543