Marketable Securities & Fair Value Measurements (Tables)

12 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Marketable Securities [Table Text Block]

	June 30,		June 30,
	2020		2019
Short-term available-for-sale debt securities	$	40,088	$	38,193
Long-term available-for-sale debt securities	6,276		9,832
Available-for-sale debt securities	46,364		48,025
Mutual funds	327		410
Total marketable securities	$	46,691	$	48,435

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

			As of June 30, 2020
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Commercial paper	$	9,778	$	—	$	—	$	9,778
U.S. government securities	6,120		1		—		6,121
Corporate debt	21,267		232		(1)		21,498
Asset backed securities	8,930		37		—		8,967
Total available-for-sale debt securities	$	46,095	$	270	$	(1)	$	46,364

			As of June 30, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Commercial paper	$	14,277	$	—	$	—	$	14,277
Corporate debt	26,466		64		—		26,530
Asset backed securities	7,204		14		—		7,218
Total available-for-sale debt securities	$	47,947	$	78	$	—	$	48,025

Available-for-sale marketable securities at fair value on recurring basis

			Fair Value Measurements as of June 30, 2020 Using Inputs Considered as
	Fair Value		Level 1		Level 2		Level 3
Commercial paper	$	9,778	$	—	$	9,778	$	—
U.S. government securities	6,121		—		6,121		—
Corporate debt	21,498		—		21,498		—
Asset backed securities	8,967		—		8,967		—
Mutual funds	327		99		228		—
Total marketable securities	$	46,691	$	99	$	46,592	$	—

			Fair Value Measurements as of June 30, 2019 Using Inputs Considered as
	Fair Value		Level 1		Level 2		Level 3
Commercial paper	$	14,277	$	—	$	14,277	$	—
Corporate debt	26,530		—		26,530		—
Asset backed securities	7,218		—		7,218		—
Mutual funds	410		121		289		—
Total marketable securities	$	48,435	$	121	$	48,314	$	—