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Employee Benefit Plans, Schedule of Net Periodic Benefit Cost Not Yet Recognized (Details) (USD $)
Mar. 31, 2012
Dec. 31, 2011
Mar. 31, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Unamortized net actuarial loss $ 100,000 $ 100,000 $ 49,000
Unrecognized transition obligation 27,000 34,000 56,000
Total (127,000) (134,000) (105,000)
Deferred tax benefit at 35% 45,000 47,000 37,000
Net unrecognized post-retirement benefits included in accumulated other comprehensive income (loss) $ 82,000 $ 87,000 $ 68,000