Fair value of financial instruments (Tables)

12 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments Using Inputs

The fair values of these financial instruments were determined using the following inputs at June 30, 2020 (in thousands):

	Fair Value Measurements at June 30, 2020 Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Description
Cash equivalents:
Money market mutual funds	$	195	$	195	$	—	$	—
Commercial paper	—		—		—		—
Total cash equivalents	195		195		—		—
Short-term investments:
U.S. treasury securities	3,753		3,753		—		—
U.S. agency securities	5,058		—		5,058		—
Asset-backed securities	20,826		—		20,826		—
Municipal securities	9,542		—		9,542		—
Commercial paper	—		—		—		—
Corporate bonds	51,136		—		51,136		—
Total debt securities	90,315		3,753		86,562		—
Marketable equity securities	—		—		—		—
Total short-term investments	90,315		3,753		86,562		—
Cash equivalents and short-term investments	$	90,510	$	3,948	$	86,562	$	—

The fair values of our financial instruments were determined using the following inputs at June 30, 2019 (in thousands):

	Fair Value Measurements at June 30, 2019 Using
			Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Description
Cash equivalents:
Money market mutual funds	$	790	$	790	$	—	$	—
Commercial paper	498		—		498
U.S. treasury securities	—		—		—		—
Total cash equivalents	1,288		790		498		—
Short-term investments:
U.S. treasury securities	3,572		3,572		—		—
U.S. agency securities	3,009		—		3,009		—
Asset-backed securities	12,413		—		12,413		—
Municipal securities	4,140		—		4,140		—
Commercial paper	1,986		—		1,986		—
Corporate bonds	45,734		—		45,734		—
Total debt securities	70,854		3,572		67,282		—
Marketable equity securities	1,349		1,349		—		—
Total short-term investments	72,203		4,921		67,282		—
Cash equivalents and short-term investments	$	73,491	$	5,711	$	67,780	$	—