Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

(In thousands) Years Ended December 31,	2016		2015		2014
Legal fees	$	257	$	221	$	212
Commissions and fees related to the sale of repossessed commercial real estate and property management		-		9		10
Insurance premiums/commissions		-		1		8
Other		2		5		9
Total	$	259	$	236	$	239

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

(In thousands, except per share data) Years Ended December 31,	2016		2015		2014
Net income, basic and diluted	$	16,605	$	14,992	$	16,459
Less preferred stock dividends and discount accretion		-		395		1,927
Net income available to common shareholders, basic and diluted	$	16,605	$	14,597	$	14,532
Average common shares outstanding, basic and diluted		7,504		7,494		7,483
Net income per common share, basic and diluted	$	2.21	$	1.95	$	1.94

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

	ESPP
	2016			2015			2014
Expected volatility		26.3	%		32.6	%		37.4	%
Dividend yield		.83			-			-
Risk-free interest rate		.26			.02			.04
Expected life (in years)		.25			.25			.25
Fair value	$	5.31		$	5.08		$	4.69