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Critical Accounting Policies and Estimates (Details) - USD ($) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022
Accounting Policies [Abstract] |  |
Allowance for doubtful accounts |  | $ 0
Accounts receivable for chargebacks | $ 445,000 | 502,000
Allowance for slow moving and obsolete inventory | 555,000 | 433,000
Amount of revenue from contract liabilities related to open jobs outstanding | 1,672,000 |
Estimated liability for compensation claims | 915,000 | 889,000
Liability for post retirement healthcare benefits | 6,397,000 | 6,625,000
Contract with Customer, Asset, after Allowance for Credit Loss, Current | 861,000 | 344,000
Cash and cash equivalents | $ 14,162,000 | $ 4,183,000

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