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Critical Accounting Policies and Estimates (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Accounting Policies [Abstract] |  |
Cash and cash equivalents | $ 42,397,000 | $ 41,803,000
Accounts Receivable, Allowance for Credit Loss | 28,000 | 0
Accounts receivable for chargebacks | 224,000 | 227,000
Allowance for slow moving and obsolete inventory | 1,138,000 | 1,392,000
Contract assets | 1,410,000 | 758,000
Amount of revenue from contract liabilities related to open jobs outstanding | 3,355,000 |
Estimated liability for compensation claims | 901,000 | 1,087,000
Liability for post retirement healthcare benefits | $ 3,374,000 | $ 3,298,000

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