Fair Value Measurements (Tables)

12 Months Ended

Apr. 30, 2020

Fair Value Measurements

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 Company’s financial assets measured at fair value on a recurring basis at April 30, 2020, 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
Available-for-sale securities	$	—	$	58,095	$	—	$	58,095
Total	$	—	$	58,095	$	—	$	58,095

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

	Fair Value
	Measurements Using
	Significant
	Unobservable Inputs
Description	(Level 3)
Balance at May 1, 2019	$	—
Business acquisition		1,703
Transfers to Level 3		—
Total (gains) losses (realized or unrealized)
Included in product cost of sales		1,147
Included in selling, general and administrative		(703)
Included in research and development		353
Included in other comprehensive income		—
Settlements		(2,500)
Balance at April 30, 2020	$	—
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 or liabilities still held at April 30, 2020	$	—