Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

(In thousands)	2016		2015		2014
Current tax expense
Federal	$	14,270	$	15,478	$	14,958
State		698		608		641
Total current tax expense		14,968		16,086		15,599
Deferred tax expense (benefit)
Federal		192		748		(385	)
State		36		54		26
Total deferred tax expense (benefit)		228		802		(359	)
Change in valuation allowance		48		45		41
Total income tax expense	$	15,244	$	16,933	$	15,281

Schedule of Income Tax Expense Benefit, Recorded Directly to Stockholders Equity [Table Text Block]

(In thousands)	2016			2015			2014
Unrealized (loss) gain on securities available for sale	$	(1,171	)	$	(839	)	$	2,383
Reclassification adjustment for securities losses realized in income		-			-			3
Reclassification adjustment for securities impairment realized in income		-			36			-
Unrealized (loss) gain on derivatives		24			(41	)		-
Minimum pension liability adjustment		1			61			(69	)
Compensation expense for tax purposes in excess of amounts recognized for financial reporting purposes		(1,705	)		(673	)		(378	)
Total income tax (benefit) expense recorded directly to stockholders' equity	$	(2,851	)	$	(1,456	)	$	1,939

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year ended December 31,
	2016			2015			2014
U.S. federal income tax rate		35.0	%		35.0	%		35.0	%
Tax credits		(9.7	)		(2.5	)		(3.1	)
Tax credit amortization expense		2.8			0.4			-
Tax exempt interest income		(1.2	)		(1.4	)		(1.5	)
Cash surrender value of life insurance		(0.9	)		(0.8	)		(1.4	)
State income taxes		0.8			0.8			0.9
Other, net		0.3			(0.2	)		0.6
Effective tax rate		27.1	%		31.3	%		30.5	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
(In thousands)	2016		2015
Allowance for loan loss	$	8,581	$	8,029
Deferred compensation		5,589		5,730
Accrued expenses		1,360		1,515
Investments in partnerships		905		1,177
Write-downs and costs associated with other real estate owned		29		435
Loans		685		659
Other-than-temporary impairment		37		347
Other assets		185		187
Total deferred tax assets		17,371		18,079
Securities		438		1,655
Property and equipment		1,409		1,158
Loan costs		923		843
Prepayment penalty on modification of FHLB advances		-		-
Mortgage servicing rights		280		315
Leases		381		611
Core deposit intangible		502		573
Other liabilities		408		473
Total deferred tax liabilities		4,341		5,628
Valuation allowance		134		86
Net deferred tax asset	$	12,896	$	12,365

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

(In thousands)	2016			2015
Balance as of January 1	$	40		$	40
Increases - current year tax positions		11			11
Increases - prior year tax positions		-			-
Settlements		-			-
Lapse of statute of limitations		(11	)		(11	)
Balance as of December 31	$	40		$	40