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Consolidated Statements of Comprehensive Income (USD $) In Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2011 | Jun. 30, 2010 | Jun. 30, 2011 | Jun. 30, 2010
Other Comprehensive Income [Abstract] |  |  |  |
Net income | $ 3,726 | $ 3,941 | $ 10,101 | $ 8,379
Unrealized gains on securities available for sale: |  |  |  |
Unrealized holding gains arising during the period, pretax | 1,198 | 1,190 | 1,387 | 2,085
Tax benefit | (467) | (464) | (541) | (813)
Reclassification to realized gains | (60) | (15) | (74) | (24)
Tax expense | 23 | 5 | 29 | 9
Postretirement Plans: |  |  |  |
Amortization of unrecognized net actuarial loss | 140 | 117 | 280 | 234
Tax expense | (56) | (46) | (112) | (92)
Amortization of prior service cost and transition obligation | 9 | 9 | 18 | 18
Tax expense | (4) | (4) | (8) | (8)
Other comprehensive income | 783 | 792 | 979 | 1,409
Comprehensive income | $ 4,509 | $ 4,733 | $ 11,080 | $ 9,788

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