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Nature of Business, Financial Condition, Basis of Presentation - General Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash	$ 40,560	$ 38,163	$ 49,901	$ 48,333
Net loss
Net loss	(27,851)	(4,306)
Accumulated deficit
Accumulated deficit	(206,150)		(178,299)
Operating activities
Cash used in operations	(3,791)	$ (7,983)
Current assets
Current assets	$ 89,038		$ 105,234

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