Accounting for Uncertainty in Income Taxes (Tables)

12 Months Ended

Apr. 30, 2018

Income Tax Disclosure [Abstract]

Activity Related to Unrecognized Tax Benefits

The following table summarizes the activity related to unrecognized tax benefits, excluding the federal tax benefit of state tax deductions:

	April 30
(in thousands)	2018		2017
Change in Unrecognized Tax Benefits
Balance at beginning of year	$	28	$	30
Reductions for tax positions of prior years	—		(2		)
Acquisitions, divestures, and other	900		—
Balance at end of year	$	928	$	28