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Consolidated Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Net income $ 6,866 $ 8,190
Interest rate swaps:    
Adjustment for amortization of losses included in net income 36 83
Income tax expense 12 28
Post retirement benefit plan adjustments:    
Net actuarial (loss) gain 3,118 (633)
Prior service costs (496) (496)
Income tax benefit (expense) (961) 384
Comprehensive income $ 8,551 $ 7,500