Fair Value Measurements (Tables)

9 Months Ended

Jan. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value of Assets on Recurring Basis

January 31, 2019 and April 30, 2018 at fair value on a recurring basis (in thousands):

	Fair Value Measurements
	As of January 31, 2019
	Level 1		Level 2		Level 3
ASSETS:
Certificates of deposit	$	2,500	$	—	$	—
Mutual funds	922		—		—
Foreign exchange forward contracts	—		291		—
Total assets at fair value	$	3,422	$	291	$	—
	As of April 30, 2018
	Level 1		Level 2		Level 3
ASSETS:
Certificates of deposit	$	9,500	$	—	$	—
Mutual funds	1,057		—		—
Total assets at fair value	$	10,557	$	—	$	—