Taxes on Income (Details) - Significant components of the Company`s deferred income tax assets and liabilities - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Jun. 26, 2012
Deferred income tax asset:
Tax credit carryforwards	$ 808	$ 897
Operating loss carryforwards	6,533	6,253	$ 5,900
Net pension costs	2,225	2,749
Accruals	240	250
Allowance for bad debts	(10)	55
Other	438	415
Valuation allowance	(8,318)	(8,208)
Deferred income tax asset, Total	1,916	2,411
Deferred income tax liability:
Depreciation	1,071	1,600
Other	845	811
Deferred income tax liability, Total	1,916	2,411
Net deferred income taxes