LIABILITY FOR EMPLOYEE RIGHTS UPON RETIREMENT (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
LIABILITY FOR EMPLOYEE RIGHTS UPON RETIREMENT [Abstract]
Employee severance obligation payments	$ 177	$ 181	$ 174
Severance expense	1,000	816	1,100
Contributions	670	641	531
Net (gain) or loss for the period	36	14	26
Expected severance liabilities payments for fiscal year end 2013	963
Expected contribution to one or more Contribution Plans	$ 773

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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