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Critical Accounting Policies and Estimates (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 90,000
Accounts receivable for chargebacks	123,000	$ 138,000
Allowance for slow moving and obsolete inventory	730,000	671,000
Amount of revenue from contract liabilities related to open jobs outstanding	1,841,000
Estimated liability for compensation claims	997,000	988,000
Liability for post retirement healthcare benefits	3,008,000	3,116,000
Contract with Customer, Asset, after Allowance for Credit Loss, Current	80,000	77,000
Cash and cash equivalents	$ 26,618,000	$ 24,104,000

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