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v3.22.1

Property, Plant and Equipment | 3 Months Ended
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Mar. 31, 2022
Property, Plant and Equipment |
Property, Plant and Equipment | Note 5 – Property, Plant and Equipment At March 31, 2022 and December 31, 2021, Mustang’s property, plant and equipment consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Estimated Useful |  | March 31, |  | December 31,
($ in thousands) | ​ | Life (in years) | ​ | 2022 | ​ | 2021
Computer equipment |  | 3 | ​ | $ | 145 | ​ | $ | 145
Furniture and fixtures |  | 5 | ​ |  | 370 | ​ |  | 370
Machinery and equipment |  | 5 | ​ |  | 6,633 | ​ |  | 6,550
Leasehold improvements |  | 9 | ​ |  | 7,694 | ​ |  | 7,694
Construction in process |  | N/A | ​ |  | 2,043 | ​ |  | 2,027
Total property, plant and equipment | ​ | ​ | ​ |  | 16,885 | ​ |  | 16,786
Less: accumulated depreciation | ​ | ​ | ​ |  | (6,374) | ​ |  | (5,734)
Property, plant and equipment, net | ​ | ​ | ​ | $ | 10,511 | ​ | $ | 11,052
​ Depreciation expense for the three months ended March 31, 2022 and 2021, was approximately $0.6 million and $0.5 million, respectively, and was recorded in research and development expense in the Unaudited Condensed Statements of Operations.

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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 http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://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 http://asc.fasb.org/extlink&oid=120429125&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 http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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