Income Taxes (Tables)

3 Months Ended

Apr. 30, 2023

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,
		2023		2022
Unrecognized tax benefits, beginning of period	$	19,088	$	16,781
Changes for prior years’ tax positions		(3)		88
Changes for current year tax positions		-		-
Unrecognized tax benefits, end of period	$	19,085	$	16,869