Fair Value Measurements (Tables)

12 Months Ended

Apr. 30, 2017

Fair Value Measurements

Schedule of financial assets measured at fair value on a recurring basis

The Company’s financial assets measured at fair value on a recurring basis at April 30, 2017, were as follows (in thousands):

	Fair Value Measurement Using
			Significant
	Quoted prices in		other		Significant
	active markets for		observable		unobservable
	identical assets		inputs		inputs
Description	(Level 1)		(Level 2)		(Level 3)		Total
Auction rate securities	$	—	$	—	$	2,497	$	2,497
Total	$	—	$	—	$	2,497	$	2,497

Schedule of reconciliation between beginning and ending balances of items measured at fair value on recurring basis that used significant unobservable inputs (Level 3)

The following table provides a reconciliation between the beginning and ending balances of items measured at fair value on a recurring basis in the table above that used significant unobservable inputs (Level 3) (in thousands):

	Fair Value
	Measurements Using
	Significant
	Unobservable Inputs
Description	(Level 3)
Balance at May 1, 2016	$	2,780
Transfers to Level 3		—
Total gains (realized or unrealized)
Included in earnings		—
Included in other comprehensive income		117
Purchases, issuances and settlements, net		(400)
Balance at April 30, 2017	$	2,497
The amount of total gains or (losses) for the period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at April 30, 2017	$	—