Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Jun. 30, 2019			60,008,481
Beginning balance at Jun. 30, 2019	$ 114,423		$ 376,853	$ (262,430)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13 [Member]
Stock based compensation and exercises (in shares)			752,808
Stock-based compensation and exercises (net)	$ 3,110		$ 3,110
Issuance of common stock in relation to private placement, net of offering costs incurred (in shares)	3,800,000
Issuance of common stock in relation to private placement, net of offering costs incurred	$ 16,777		$ 16,777
Issuance of common stock to Hudson Executive Capital LP (in shares)			635,593
Issuance of common stock to Hudson Executive Capital LP	4,500		$ 4,500
Net loss	(40,595)			(40,595)
Ending balance (in shares) at Jun. 30, 2020			65,196,882
Ending balance at Jun. 30, 2020	98,215	$ 348	$ 401,240	(303,025)	$ 348
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation and exercises (in shares)			319,011
Stock-based compensation and exercises (net)	9,145		$ 9,145
Issuance of common stock in relation to private placement, net of offering costs incurred (in shares)			5,730,000
Issuance of common stock in relation to private placement, net of offering costs incurred	$ 52,390		$ 52,390
Exercise of warrants (in shares)	12,154		12,154
Net loss	$ (8,705)			(8,705)
Ending balance (in shares) at Jun. 30, 2021			71,258,047
Ending balance at Jun. 30, 2021	151,393		$ 462,775	(311,382)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation and exercises (in shares)			249,829
Stock-based compensation and exercises (net)	7,143		$ 7,143
Retirement of common stock (in shares)			(319,823)
Net loss	(1,703)			(1,703)
Ending balance (in shares) at Jun. 30, 2022			71,188,053
Ending balance at Jun. 30, 2022	$ 156,833		$ 469,918	$ (313,085)