Quarterly Results (Unaudited) - Disclosure Detail Of Quarterly Financial Information (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2021		Jun. 30, 2020		Jun. 30, 2019
Quarterly Financial Data [Line Items]
Sales and marketing expenses	$ (4,146)	$ (3,649)	$ (3,600)	$ (3,265)	$ (4,260)	$ (4,375)	$ (3,972)	$ (3,099)	$ (14,660)	[1]	$ (15,706)	[1]	$ (12,549)	[1]
General and administrative expenses	(5,275)	(5,422)	(3,401)	(8,302)	(9,709)	(12,787)	(7,107)	(3,422)	(22,400)	[1]	(33,025)	[1]	(15,099)	[1]
Research and development expenses	(3,974)	(4,109)	(3,361)	(3,374)	(2,538)	(2,495)	(2,312)	(1,819)	(14,818)	[1]	(9,164)	[1]	(8,004)	[1]
Share-based compensation									(5,664)		(16,486)		(1,946)
Total operating expenses	(13,395)	(13,180)	(10,362)	(14,941)	(16,507)	(19,657)	(13,391)	(8,340)	(51,878)		(57,895)		(35,652)
Operating loss	(4,704)	(5,991)	(5,631)	(10,214)	(13,023)	(15,406)	(10,592)	(3,658)	(26,540)		(42,679)		(25,528)
Loss before income taxes	(4,711)	(5,987)	(5,630)	(10,217)	(12,910)	(15,048)	(10,502)	(3,566)	(26,545)		(42,026)		(25,223)
Net loss	$ (4,718)	$ (5,997)	$ (5,641)	(10,227)	(12,914)	(15,048)	(10,502)	(3,566)	$ (26,583)		(42,030)		(25,102)
As Previously Reported [Member]
Quarterly Financial Data [Line Items]
Sales and marketing expenses				(2,935)	(3,951)	(4,162)	(3,738)	(2,962)			(14,813)		(12,253)
General and administrative expenses				(5,536)	(6,361)	(4,145)	(4,558)	(3,071)			(18,135)		(13,581)
Research and development expenses				(3,204)	(2,332)	(2,302)	(2,192)	(1,635)			(8,461)		(7,872)
Share-based compensation				(3,266)	(3,863)	(9,048)	(2,903)	(672)			(16,486)		(1,946)
Total operating expenses				(14,941)	(16,507)	(19,657)	(13,391)	(8,340)			(57,895)		(35,652)
Operating loss				(10,214)	(13,023)	(15,406)	(10,592)	(3,658)			(42,679)		(25,528)
Loss before income taxes				(10,217)	(12,910)	(15,048)	(10,502)	(3,566)			(42,026)		(25,223)
Net loss				(10,227)	(12,914)	(15,048)	(10,502)	(3,566)			(42,030)		(25,102)
Amount Reclassified [Member]
Quarterly Financial Data [Line Items]
Sales and marketing expenses				(330)	(309)	(213)	(234)	(137)			(893)		(296)
General and administrative expenses				(2,766)	(3,348)	(8,642)	(2,549)	(351)			(14,890)		(1,518)
Research and development expenses				(170)	(206)	(193)	(120)	(184)			(703)		(132)
Share-based compensation				$ 3,266	$ 3,863	$ 9,048	$ 2,903	$ 672			$ 16,486		$ 1,946

[1] Refer to Note 2 for reclassification of share-based compensation expense.