Note 20 - Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	December 31, 2014
	Level 1		Level 2		Level 3		Total
Assets
Trading account assets	$	1,397	$	4,116	$	-	$	5,513
Investment securities available for sale
U.S. agency		-		3,965		-		3,965
State and municipal		572		6,160		-		6,732
Collateralized mortgage obligations (federal agencies)		-		87,774		-		87,774
Other mortgage-backed (federal agencies)		-		78,503		-		78,503
SBA loan-backed (federal agency)		19,675		14,862		-		34,537
Derivative financial instruments		-		85		-		85
Total assets measured at fair value on a recurring basis	$	21,644	$	195,465	$	-	$	217,109
Liabilities
Derivative financial instruments	$	-	$	18	$	-	$	18

	December 31, 2013
	Level 1		Level 2		Level 3		Total
Assets
Trading account assets	$	1,347	$	3,771	$	-	$	5,118
Investment securities available for sale
State and municipal		-		7,460		-		7,460
Collateralized mortgage obligations (federal agencies)		-		93,132		-		93,132
Other mortgage-backed (federal agencies)		1,188		74,832		-		76,020
SBA loan-backed (federal agency)		20,457		17,314		-		37,771
Derivative financial instruments		-		204		-		204
Total assets measured at fair value on a recurring basis	$	22,992	$	196,713	$	-	$	219,705
Liabilities
Derivative financial instruments	$	-	$	7	$	-	$	7

Fair Value Measurements, Nonrecurring [Table Text Block]

	December 31, 2014
	Level 1		Level 2		Level 3		Total
Assets
Mortgage loans held for sale	$	-	$	1,125	$	-	$	1,125
Impaired loans		-		5,709		-		5,709
Foreclosed real estate		82		-		4,717		4,799
Total assets measured at fair value on a nonrecurring basis	$	82	$	6,834	$	4,717	$	11,633

	December 31, 2013
	Level 1		Level 2		Level 3		Total
Assets
Mortgage loans held for sale	$	-	$	1,722	$	-	$	1,722
Impaired loans		-		5,588		25		5,613
Foreclosed real estate		34		31		6,595		6,660
Total assets measured at fair value on a nonrecurring basis	$	34	$	7,341	$	6,620	$	13,995

Fair Value Assets Measured on Non Recurring Basis Unobservable Input Reconciliation [Table Text Block]

	Fair value		Valuation technique	Significant unobservable inputs
Assets
Foreclosed real estate	$	4,717	Appraisals of collateral value	Adjustments to appraisal for age of comparable sales

Fair Value, by Balance Sheet Grouping [Table Text Block]

	Carrying amount		Fair value
December 31, 2014
Financial instruments - assets
Loans (1)	$	788,228	$	788,334
Financial instruments - liabilities
Deposits		928,320		885,100
December 31, 2013
Financial instruments - assets
Loans (1)	$	748,243	$	748,330
Financial instruments - liabilities
Deposits		907,360		896,858