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Property and Equipment | 3 Months Ended
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Sep. 30, 2022
Property, Plant and Equipment [Abstract] |
Property and Equipment | 5. Property and Equipment Properties and equipment are recorded at cost and depreciated on a straight-line basis over the assets estimated economic life. Leasehold improvements are amortized over the shorter of the estimated economic life or remaining lease term. Property and equipment consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, | ​ | June 30,
​ | ​ | 2022 | ​ | 2022
​ | ​ | (In thousands)
Manufacturing equipment | ​ | $ | 2,449 |  | $ | 2,487
Leasehold improvements |  |  | 999 | ​ |  | 999
Office equipment, furniture and other |  |  | 1,128 | ​ |  | 1,128
Lab equipment |  |  | 832 | ​ |  | 832
Property and equipment, gross | ​ | ​ | 5,408 | ​ | ​ | 5,446
Less accumulated depreciation and amortization | ​ | ​ | (2,736) | ​ | ​ | (2,421)
Property and equipment, net |  | $ | 2,672 | ​ | $ | 3,025
​ ​ Depreciation and amortization expense was $0.3 million and $0.4 million for the three months ended September 30, 2022 and 2021, respectively. ​ ​ ​ ​

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI https://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126982197&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99779-112916 + Details
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