Commitments And Contingent Liabilities (Employement Agreements) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Aug. 13, 2012 Interger
Commitments and Contingencies Disclosure [Abstract]
Bonus multiplier for minimum base salary of Chief Executive Officer	6
Bonus multiplier for minimum base salary of President and Chief Legal Officer and Chief Financial Officer	3
Contingent executive termination payment	$ 14,651

Bonus Multiplier for minimum base salary of the President and Chief Legal Officer and Chief Financial Officer under certain employment agreement termination provisions

No definition available.

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Period Type:	duration