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Summary of Significant Accounting Policies (Details) |  |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 17, 2023 USD ($) | Jun. 30, 2023 USD ($) | Mar. 30, 2023 USD ($) | Aug. 01, 2022 USD ($) | Jun. 21, 2022 USD ($) | Dec. 31, 2023 USD ($) facility segment | Dec. 31, 2022 USD ($) segment | Aug. 12, 2022 USD ($)
Property, Plant and Equipment |  |  |  |  |  |  |  |
Number of operating segments | segment |  |  |  |  |  | 2 | 3 |
Cash and cash equivalents |  |  |  |  |  | $ 2,560,000 | $ 2,882,000 |
Impairments of property, plant, and equipment |  |  |  |  |  | 0 | 0 |
Product warranty reserve |  |  |  |  |  | 688,000 | 870,000 |
Foreign currency transaction gain (loss) |  |  |  |  |  | (77,000) | (434,000) |
Research and development expenses |  |  |  |  |  | $ 2,555,000 | 2,219,000 |
Cougar Mountain Precast, LLC |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Consideration transferred to acquire operating assets | $ 1,644,000 |  |  |  |  |  |  |
Buildings | Minimum |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  |  |  | 10 years |  |
Buildings | Maximum |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  |  |  | 41 years |  |
Machinery and equipment | Minimum |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  |  |  | 2 years |  |
Machinery and equipment | Maximum |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  |  |  | 50 years |  |
Leasehold improvements | Minimum |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  |  |  | 4 years |  |
Leasehold improvements | Maximum |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  |  |  | 19 years |  |
Non Domestic |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  | $ 2,193,000 | $ 2,012,000 |
Skratch |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Business combination, stock acquire |  |  |  |  | $ 7,402,000 |  |  |
Business combination, deferred consideration |  |  |  |  | $ 1,228,000 |  |  |
Business combination, term for payment of deferred consideration |  |  |  |  | 5 years |  |  |
VanHooseCo |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Business combination, stock acquire |  |  |  |  |  |  |  | $ 52,146,000
Escrow deposit |  |  |  |  |  |  |  | $ 2,500,000
Rail Products Business Unit |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Proceeds from divestiture of assets |  | $ 2,362,000 |  | $ 7,795,000 |  |  |  |
Coatings and Measurement |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Proceeds from divestiture of assets |  |  | $ 5,344,000 |  |  |  |  |
Precast Concrete Products |  |  |  |  |  |  |  |
Property, Plant and Equipment |  |  |  |  |  |  |  |
Number of manufacturing facilities | facility |  |  |  |  |  | 9 |  |

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