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Fair Value Measurements (Tables)
 12 Months Ended
Apr. 30, 2018
Fair Value Disclosures [Abstract]  
Fair Value Of Assets On Recurring Basis
The following table summarizes the fair value of assets that are recorded in the Company’s consolidated financial statements as of April 30, 2018 and 2017 at fair value on a recurring basis: 
 
FAIR VALUE MEASUREMENTS AS OF APRIL 30, 2018
(in thousands)
LEVEL 1
 
LEVEL 2
 
LEVEL 3
ASSETS:
 
 
 
 
 
Certificates of deposit
$
9,500

 
$
—

 
$
—

Mutual funds
1,057

 
—

 
—

Total assets at fair value
$
10,557

 
$
—

 
$
—







 
FAIR VALUE MEASUREMENTS AS OF APRIL 30, 2017
(in thousands)
LEVEL 1

LEVEL 2

LEVEL 3
ASSETS:
 

 

 
Money market funds
$
50,146


$
—


$
—

Mutual funds
1,038


—


—

Certificates of deposit
72,250


—


—

Total assets at fair value
$
123,434


$
—


$
—