Quarterly report pursuant to Section 13 or 15(d)

Supplemental Retirement Plan and Related Post Retirement Benefits (Details Textual)

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Supplemental Retirement Plan and Related Post Retirement Benefits (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Mar. 06, 2012
Supplemental Retirement Plan and Related Post Retirement Benefits (Textual) [Abstract]    
Projected benefit obligation   $ 5.8
Pension cost $ 0.8