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Note 4 - Investment Securities Available-for-Sale (Tables)

9 Months Ended

Sep. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

			Gross		Gross		Estimated
September 30, 2014	Amortized		Unrealized		Unrealized		Fair
(dollars in thousands)	Cost		Gains		Losses		Value
U. S. Government agency securities	$	38,636	$	545	$	97	$	39,084
Residential mortgage backed securities		227,525		1,328		3,724		225,129
Municipal bonds		113,390		4,716		250		117,856
Other equity investments		396		3		-		399
	$	379,947	$	6,592	$	4,071	$	382,468

			Gross		Gross		Estimated
December 31, 2013	Amortized		Unrealized		Unrealized		Fair
(dollars in thousands)	Cost		Gains		Losses		Value
U. S. Government agency securities	$	46,640	$	843	$	148	$	47,335
Residential mortgage backed securities		234,206		1,143		6,675		228,674
Municipal bonds		102,423		2,017		2,700		101,740
Other equity investments		396		-		12		384
	$	383,665	$	4,003	$	9,535	$	378,133

Schedule of Unrealized Loss on Investments [Table Text Block]

	Less than				12 Months
	12 Months				or Greater				Total
	Estimated				Estimated				Estimated
September 30, 2014	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(dollars in thousands)	Value		Losses		Value		Losses		Value		Losses
U. S. Government agency securities	$	4,005	$	16	$	4,702	$	81	$	8,707	$	97
Residential mortgage backed securities		55,857		311		96,923		3,413		152,780		3,724
Municipal bonds		3,309		3		17,952		247		21,261		250
	$	63,171	$	330	$	119,577	$	3,741	$	182,748	$	4,071

	Less than				12 Months
	12 Months				or Greater				Total
	Estimated				Estimated				Estimated
December 31, 2013	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(dollars in thousands)	Value		Losses		Value		Losses		Value		Losses
U. S. Government agency securities	$	4,782	$	148	$	-	$	-	$	4,782	$	148
Residential mortgage backed securities		155,475		5,992		15,658		683		171,133		6,675
Municipal bonds		50,450		2,512		3,196		188		53,646		2,700
Other equity investments		-		-		165		12		165		12
	$	210,707	$	8,652	$	19,019	$	883	$	229,726	$	9,535

Available-for-sale Securities [Table Text Block]

	September 30, 2014				December 31, 2013
	Amortized		Estimated		Amortized		Estimated
(dollars in thousands)	Cost		Fair Value		Cost		Fair Value
U. S. Government agency securities maturing:
One year or less	$	3,000	$	2,981	$	19,025	$	19,133
After one year through five years		29,152		29,565		27,615		28,202
Five years through ten years		6,484		6,538		-		-
Residential mortgage backed securities		227,525		225,129		234,206		228,674
Municipal bonds maturing:
One year or less		2,846		2,876		25,718		26,008
After one year through five years		46,404		48,757
Five years through ten years		62,682		64,649		76,705		75,732
Ten years through fifteen years		1,458		1,574		-		-
Other equity investments		396		399		396		384
	$	379,947	$	382,468	$	383,665	$	378,133

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References+ Details