Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

(In thousands) Years Ended December 31,	201 7		201 6		201 5
Legal fees	$	139	$	257	$	221
Commissions and fees related to the sale of repossessed commercial real estate and property management		-		-		9
Insurance premiums/commissions		-		-		1
Other		27		2		5
Total	$	166	$	259	$	236

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

(In thousands, except per share data) Years Ended December 31,	201 7		201 6		201 5
Net income, basic and diluted	$	11,688	$	16,605	$	14,992
Less p referred stock dividends and discount accretion		-		-		395
Net income available to common shareholders, basic and diluted	$	11,688	$	16,605	$	14,597
Average common shares issued and outstanding, basic and diluted		7,513		7,504		7,494
Net income per common share, basic and diluted	$	1.56	$	2.21	$	1.95

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

	ESPP
	201 7			201 6			201 5
Expected volatility		23.2	%		26.3	%		32.6	%
Dividend yield		1.04			.83			-
Risk-free interest rate		.85			.26			.02
Expected life (in years)		.25			.25			.25
Fair value	$	7.43		$	5.31		$	5.08