LIABILITY FOR EMPLOYEE RIGHTS UPON RETIREMENT (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) employee	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Employee severance obligation payments	$ 96,000	$ 108,000	$ 121,000
Severance expense	945,000	990,000	885,000
Contributions	800,000	857,000	747,000
Gain for the period	$ (3,000)	$ 100,000	$ 28,000
Number of benefit eligible employees | employee	1
Benefits Payable During Next Five Years	$ 150,000
Contribution to Insurance Companies [Member]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	857,000
Contribution to Defined Contribution Plans [Member]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 779,000