Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes [Abstract]

Schedule of Income Tax Expense

	2012		2011		2010
Current:
Federal	$	5,107	$	11,301	$	11,282
State		457		463		433
		5,564		11,764		11,715
Deferred:
Federal		5,318		17		(602	)
Income tax expense	$	10,882	$	11,781	$	11,113

Reconciliation of Expected Income Tax Benefit Computed Using Federal Statutory Income Tax Rate

	2012			2011			2010
Computed tax expense	$	12,008		$	13,285		$	12,558
Increase (reduction) in income taxes resulting from:
Tax exempt income		(623	)		(753	)		(888	)
State taxes, net of federal benefit		297			301			281
Income from life insurance		(484	)		(760	)		(517	)
Low income housing credits		(328	)		(393	)		(381	)
Other		12			101			60
Income tax expense	$	10,882		$	11,781		$	11,113

Schedule of Deferred Tax Assets and Deferred Tax Liabilities

	2012				2011
	Asset		Liability		Asset		Liability
Allowance for possible losses on loans	$	8,081	$	-	$	8,061	$	-
Allowance for OTTI of investments		71		-		5,352		-
Allowance for OREO valuation		149		-		179		-
Pension and other benefits		3,715		-		3,690		-
Depreciation		-		2,073		-		1,687
Deferred loan origination fees		-		1,256		-		1,155
Deferred compensation and benefits		904				890		-
Net unrealized gains on investments available for sale and derivative instruments		-		3,090		-		2,080
Net unrealized losses on postretirement plans		1,476		-		970		-
Purchase accounting		760		-		571		-
Deposit premium		-		907		-		937
Mortgage servicing rights		-		190		-		269
Prepaid expenses		-		683		-		579
Other		706		-		480		-
	$	15,862	$	8,199	$	20,193	$	6,707