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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Schedule Of Useful Life Property Plant And Equipment | Depreciation is calculated using the straight-line method over the estimated useful lives of the property, plant and equipment, which are:
| Years
Machinery, equipment and tooling | 3-15
SmartSystems | 5-15
Vehicles | 3-5
Furniture and fixtures | 3-10
Plant and buildings | 5-15
Real estate properties | 10-40
Railroad and sidings | 30
Land improvements | 10
Deferred stripping costs | 1-9
Schedule of finite-lived intangible assets | Acquired finite-lived intangible assets are amortized on a straight-line basis over the following periods:
|  | Estimated Useful Life (Years)
Developed technology |  | 13
The following table reflects the changes in the net carrying amounts of the Company’s intangible assets for the year ended December 31, 2024.
|  | Balance at December 31, 2023 |  | Assets Acquired Pursuant to Business Combination |  | Impairment Charges |  | Amortization Expense |  | Balance at December 31, 2024
Developed technology |  | $ | 5,876 |  |  | $ | — |  |  | $ | — |  |  | $ | 792 |  |  | $ | 5,084 |
|  | $ | 5,876 |  |  | $ | — |  |  | $ | — |  |  | $ | 792 |  |  | $ | 5,084 |
The following table reflects the changes in the net carrying amounts of the Company’s finite-lived intangible assets for the year ended December 31, 2023.
|  | Balance at December 31, 2022 |  | Assets Acquired Pursuant to Business Combination |  | Impairment Charges |  | Amortization Expense |  | Balance at December 31, 2023
Developed technology |  | $ | 6,669 |  |  | $ | — |  |  | $ | — |  |  | $ | 793 |  |  | $ | 5,876 |
|  | $ | 6,669 |  |  | $ | — |  |  | $ | — |  |  | $ | 793 |  |  | $ | 5,876 |
The following table reflects the carrying amounts of the Company's finite-lived intangible assets at December 31, 2024 and 2023.
|  | December 31, 2024 |  | December 31, 2023
|  | Gross Carrying Amount |  | Accumulated Amortization |  | Gross Carrying Amount |  | Accumulated Amortization
Developed technology |  | $ | 10,300 |  |  | $ | (5,216) |  |  | $ | 10,300 |  |  | (4,424) |
|  | $ | 10,300 |  |  | $ | (5,216) |  |  | $ | 10,300 |  |  | $ | (4,424) |
Reconciliation of weighted-average common shares outstanding used in the calculation of basic and diluted net income (loss) per share | The following table reconciles the weighted-average common shares outstanding used in the calculation of basic net income per share to the weighted average common shares outstanding used in the calculation of diluted net income per share:
| Year Ended December 31,
| 2024 |  | 2023 |  | 2022
Weighted average common shares outstanding | 38,809 |  |  | 38,948 |  |  | 42,408 |
Assumed conversion of restricted stock | 275 |  |  | 98 |  |  | — |
Diluted weighted average common stock outstanding | 39,084 |  |  | 39,046 |  |  | 42,408 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable | Deferred revenue recognition is as follows:
December 31, 2024 |  | December 31, 2023
Total deferred revenue |  | $ | 54 |  |  | Total deferred revenue | $ | 1,154 |
|  |  |  | Recognized in 2024 | 1,154 |
Expected recognition: |  |  |  |  |
2025 |  | 54 |  |  |  |
|  | $ | 54 |  |  |  | $ | 1,154 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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