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Critical Accounting Policies and Estimates (Details) - USD ($)	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 37,000	$ 90,000
Accounts receivable for chargebacks	129,000	222,000
Allowance for slow moving and obsolete inventory	281,000	362,000
Amount of revenue from contract liabilities related to open jobs outstanding	4,382,000
Estimated liability for compensation claims	973,000	916,000
Liability for post retirement healthcare benefits	9,156,000	9,080,000
Contract with Customer, Asset, after Allowance for Credit Loss, Current	807,000	17,000
Cash and cash equivalents	$ 509,000	$ 6,146,000

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