Taxes on Income (Details) - Significant components of the Company`s deferred income tax assets and liabilities (Incomplete) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Apr. 10, 2019	Jun. 26, 2012
Deferred income tax asset:
Tax credit carryforwards
Operating loss carryforwards	4,000,000	2,763,000	$ 2,900,000	$ 5,900,000
Net pension costs	2,123,000	2,157,000
Allowance for bad debts	227,000	179,000
Other	6,000	6,000
Valuation allowance	(5,989,000)	(4,801,000)
Deferred income tax asset, Total	367,000	304,000
Deferred income tax liability:
Depreciation	124,000	128,000
Other	243,000	176,000
Deferred income tax liability, Total	367,000	304,000
Net deferred income taxes