Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Schedule of Related Party Transactions [Table Text Block]

(In thousands) Years Ended December 31,	2014		2013		2012
Legal fees	$	212	$	169	$	445
Commissions and fees related to the sale of repossessed commercial real estate and property management		10		9		140
Insurance premiums/commissions		8		8		24
Other		9		6		-
Total	$	239	$	192	$	609

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

(In thousands, except per share data) Years Ended December 31,	2014		2013		2012
Net income, basic and diluted	$	16,459	$	13,446	$	12,149
Less preferred stock dividends and discount accretion		1,927		1,951		1,922
Net income available to common shareholders, basic and diluted	$	14,532	$	11,495	$	10,227
Average common shares outstanding, basic and diluted		7,483		7,474		7,457
Net income per common share, basic and diluted	$	1.94	$	1.54	$	1.37

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

	ESPP
	2014			2013			2012
Expected volatility		37.4	%		45.7	%		53.5	%
Dividend yield		-			-			-
Risk-free interest rate		.04			.06			.07
Expected life (in years)		.25			.25			.25
Fair value	$	4.69		$	4.01		$	1.54