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Property and Equipment | 12 Months Ended
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Dec. 31, 2018
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment Disclosure [Text Block] | Note 5 - Property and Equipment Mustang’s property and equipment consisted of the following ($ in thousands):
|  | Estimated Useful Life (in years) |  | December 31, 2018 |  |  | December 31, 2017 |
Computer equipment |  | 3 |  | $ | 53 |  |  | $ | - |
Furniture and fixtures |  | 5 |  |  | 111 |  |  |  | - |
Machinery & equipment |  | 5 |  |  | 3,143 |  |  |  | 142 |
Leasehold improvements |  | 9 |  |  | 3,790 |  |  |  | - |
Construction in process |  | N/A |  |  | 393 |  |  |  | 1,241 |
Total property and equipment |  |  |  |  | 7,490 |  |  |  | 1,383 |
Less: accumulated depreciation |  |  |  |  | (632 | ) |  |  | (2 | )
Property and equipment, net |  |  |  | $ | 6,858 |  |  | $ | 1,381 |
Mustang’s depreciation expense for the year ended December 2018 and 2017 was approximately $0.6 million and $2,000, respectively, and was recorded in research and development expense in the Statements of Operations.

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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