Income Taxes (Tables)

3 Months Ended

Apr. 30, 2019

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,
	2019		2018
Unrecognized tax benefits, beginning of period	$	9,232	$	2,325
Changes for prior years’ tax positions		66		809
Changes for current year tax positions		138		-
Unrecognized tax benefits, end of period	$	9,436	$	3,134