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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2023
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | The following table represents a disaggregation of revenue from contracts by end markets for the years ended December 31, 2023 and 2022 (in thousands): Schedule of Disaggregation of Revenue
|  | Over time |  |  | Point in time |  |  | Total |
|  | Year Ended December 31, 2023 |
|  | Over time |  |  | Point in time |  |  | Total |
Energy |  | $ | 4,901 |  |  | $ | 189 |  |  | $ | 5,090 |
Aerospace |  |  | 3,427 |  |  |  | 1,469 |  |  |  | 4,896 |
Industrial |  |  | 6,123 |  |  |  | 2,821 |  |  |  | 8,944 |
Research |  |  | 3,700 |  |  |  | 1,479 |  |  |  | 5,179 |
Total |  | $ | 18,151 |  |  | $ | 5,958 |  |  | $ | 24,109 |
|  | Over time |  |  | Point in time |  |  | Total |
|  | Year Ended December 31, 2022 |
|  | Over time |  |  | Point in time |  |  | Total |
Energy |  | $ | 9,094 |  |  | $ | 58 |  |  | $ | 9,152 |
Aerospace |  |  | 95 |  |  |  | 1,527 |  |  |  | 1,622 |
Industrial |  |  | 5,961 |  |  |  | 4,856 |  |  |  | 10,817 |
Research |  |  | 2,807 |  |  |  | 1,415 |  |  |  | 4,222 |
Total |  | $ | 17,957 |  |  | $ | 7,856 |  |  | $ | 25,813 |
Schedule of Cost and Estimated Earnings in Excess of Billings | Contract assets and contract liabilities on input method type contracts in progress are summarized at December 31 as follows (in thousands): Schedule of Cost and Estimated Earnings in Excess of Billings
|  | 2023 |  |  | 2022 |
Costs incurred on contracts in progress |  | $ | 9,500 |  |  | $ | 14,390 |
Estimated earnings |  |  | 5,083 |  |  |  | 10,926 |
Costs and estimated earnings on uncompleted contracts |  |  | 14,583 |  |  |  | 25,316 |
Billings to date |  |  | (17,553 | ) |  |  | (26,925 | )
Net cost in excess of billings |  |  | (2,970 | ) |  |  | (1,609 | )
Deferred revenue related to non-systems contracts |  |  | (334 | ) |  |  | (263 | )
Contract liability in excess of contract assets |  | $ | (3,304 | ) |  | $ | (1,872 | )
Included in accompanying consolidated balance sheets under the following captions (in thousands): |  |  |  |  |  |  |  |
Contract assets |  | $ | 1,604 |  |  | $ | 2,170 |
Contract liabilities |  | $ | 4,908 |  |  | $ | 4,042 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-5 + Details
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