Note 3 - Investment Securities Available for Sale (Tables)

3 Months Ended

Mar. 31, 2013

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

March 31, 2013 (dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
U. S. Government agency securities	$	38,902	$	1,229	$	7	$	40,124
Residential mortgage backed securities		189,601		2,514		537		191,578
Municipal bonds		82,007		4,687		314		86,380
Other equity investments		407		-		58		349
	$	310,917	$	8,430	$	916	$	318,431

December 31, 2012 (dollars in thousands)	Amortized  Cost		Gross  Unrealized  Gains		Gross  Unrealized  Losses		Estimated  Fair  Value
U. S. Government agency securities	$	47,606	$	1,477	$	1	$	49,082
Residential mortgage backed securities		170,649		2,730		296		173,083
Municipal bonds		72,050		5,314		51		77,313
Other equity investments		407		-		65		342
	$	290,712	$	9,521	$	413	$	299,820

Schedule of Unrealized Loss on Investments [Table Text Block]

	Less than  12 Months				12 Months  or Greater				Total
March 31, 2013 (dollars in thousands)	Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
U. S. Government agency securities	$	2,999	$	7	$	-	$	-	$	2,999	$	7
Residential mortgage backed securities		44,992		537		2,743		-		47,735		537
Municipal bonds		3,964		312		-		2		3,964		314
Other equity investments		-		-		120		58		120		58
	$	51,955	$	856	$	2,863	$	60	$	54,818	$	916

	Less than  12 Months				12 Months  or Greater				Total
December 31, 2012 (dollars in thousands)	Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
U. S. Government agency securities	$	2,999	$	1	$	-	$	-	$	2,999	$	1
Residential mortgage backed securities		44,992		263		2,743		33		47,735		296
Municipal bonds		3,964		51		-		-		3,964		51
Other equity investments		-		-		112		65		112		65
	$	51,955	$	315	$	2,855	$	98	$	54,810	$	413

Available-for-sale Securities [Table Text Block]

	March 31, 2013				December 31, 2012
(dollars in thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
U. S. Government agency securities maturing:
One year or less	$	3,000	$	2,993	$	5,038	$	5,053
After one year through five years		35,902		37,131		42,568		44,029
Residential mortgage backed securities		189,601		191,578		170,649		173,083
Municipal bonds maturing:
After one year through five years		11,219		11,678		11,469		11,978
Five years through ten years		70,788		74,702		60,581		65,335
Other equity investments		407		349		407		342
	$	310,917	$	318,431	$	290,712	$	299,820