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Intangible Assets | 3 Months Ended
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Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets | 6. Intangible Assets Intangible assets consist of the following as of March 31, 2023: Schedule of Intangible Assets
(Dollars in thousands) |  | Intangible Assets |  |  | Accumulated Amortization |  |  | Total |
Strategic pipeline contract |  | $ | 46,885 |  |  | $ | 13,284 |  |  | $ | 33,601 |
Assembled workforce |  |  | 500 |  |  |  | 142 |  |  |  | 358 |
Patents |  |  | 132 |  |  |  | 4 |  |  |  | 128 |
Total |  | $ | 47,517 |  |  | $ | 13,430 |  |  | $ | 34,087 |
Intangible assets consist of the following as of December 31, 2022:
(Dollars in thousands) |  | Intangible Assets |  |  | Accumulated Amortization |  |  | Total |
Strategic pipeline contract |  | $ | 46,885 |  |  | $ | 10,940 |  |  | $ | 35,945 |
Assembled workforce |  |  | 500 |  |  |  | 117 |  |  |  | 383 |
Patents |  |  | 110 |  |  |  | 6 |  |  |  | 104 |
Total |  | $ | 47,495 |  |  | $ | 11,063 |  |  | $ | 36,432 |
Amortization expense for the three months ended March 31, 2023 and March 31, 2022 was approximately $2.4 million and $2.4 million. The strategic pipeline contract relates to supply of a critical input to our digital mining business. The Company has analyzed this strategic pipeline contract similar to a permit for future benefit. The strategic pipeline contract relates to potential renewable energy datacenters that fit in the alignment of the Company structure to expand operations of the Company’s new focus in their business. The Company expects to record amortization expense of intangible assets over the next five years and thereafter as follows: (Dollars in thousands) Schedule of Amortization Expense of Intangible Assets
Year |  | 2023 |
2023 (remainder of the year) |  | $ | 7,113 |
2024 |  |  | 9,483 |
2025 |  |  | 9,483 |
2026 |  |  | 7,904 |
2027 |  |  | 6 |
Thereafter |  |  | 98 |
Total |  | $ | 34,087 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//350-30/tableOfContent + Details
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