Property and Equipment - Tabular Disclosure (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]
Property and equipment, gross	$ 5,712	$ 5,496
Less accumulated depreciation and amortization	(3,990)	(3,681)
Property and equipment, net	1,722	1,815
Manufacturing Equipment
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]
Property and equipment, gross	2,433	2,433
Leasehold Improvements
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]
Property and equipment, gross	999	999
Office Equipment, Furniture and Other
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]
Property and equipment, gross	1,125	1,125
Lab Equipment
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]
Property and equipment, gross	832	832
Asset under Construction
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]
Property and equipment, gross	$ 323	$ 107