Note 3 - Investment Securities (Tables)

12 Months Ended

Dec. 31, 2015

Investments, Debt and Equity Securities [Abstract]

Unrealized Gain (Loss) on Investments [Table Text Block]

	At December 31, 2015
(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Collateralized mortgage obligations	$	180,795	$	523	$	(3,173	)	$	178,145
Agency mortgage-backed securities		10,073		176		(78	)		10,171
Municipal securities		22,814		562		(32	)		23,344
Corporate bonds		54,294		135		(300	)		54,129
Asset-backed securities		17,631		-		(626	)		17,005
Trust preferred securities		3,070		-		(1,187	)		1,883
Other securities		115		3		-			118
Total securities available for sale	$	288,792	$	1,399	$	(5,396	)	$	284,795
U.S. Government agencies	$	17,067	$	39	$	(72	)	$	17,034
Collateralized mortgage obligations		146,458		402		(780	)		146,080
Agency mortgage-backed securities		7,732		-		(21	)		7,711
Other securities		1,020		-		-			1,020
Total securities held to maturity	$	172,277	$	441	$	(873	)	$	171,845

	At December 31, 2014
(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Collateralized mortgage obligations	$	98,626	$	692	$	(96	)	$	99,222
Agency mortgage-backed securities		13,271		564		(33	)		13,802
Municipal securities		15,784		363		(40	)		16,107
Corporate bonds		33,840		621		(34	)		34,427
Asset-backed securities		18,353		152		-			18,505
Trust preferred securities		5,261		-		(2,068	)		3,193
Other securities		115		8		-			123
Total securities available for sale	$	185,250	$	2,400	$	(2,271	)	$	185,379
U.S. Government agencies	$	1	$	-	$	-		$	1
Collateralized mortgage obligations		67,845		531		(144	)		68,232
Other securities		20		-		-			20
Total securities held to maturity	$	67,866	$	531	$	(144	)	$	68,253

Investments Classified by Contractual Maturity Date [Table Text Block]

	Available for Sale				Held to Maturity
(dollars in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in 1 year or less	$	7,444	$	7,505	$	-	$	-
After 1 year to 5 years		13,617		13,730		5,070		5,021
After 5 years to 10 years		50,645		49,089		13,017		13,033
After 10 years		26,218		26,155		-		-
Collateralized mortgage obligations		180,795		178,145		146,458		146,080
Agency mortgage-backed securities		10,073		10,171		7,732		7,711
Total	$	288,792	$	284,795	$	172,277	$	171,845

Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]

(dollars in thousands)	2015			2014
Beginning Balance, January 1st	$	3,966		$	3,959
Additional credit-related impairment loss on securities for which an other-than-temporary impairment was previously recognized		3			7
Reductions for securities paid off during the period		-			-
Reductions for securities sold during the period		(3,039	)		-
Reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the Company intends to sell the security		-			-
Ending Balance, December 31st	$	930		$	3,966

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]

	At December 31, 2015
	Less than 12 months				12 months or more				Total
(dollars in thousands)	Fair Value			Unrealized Losses	Fair Value			Unrealized  Losses	Fair Value			Unrealized  Losses
Collateralized mortgage obligations	$	116,161	$	3,173	$	-	$	-	$	116,161	$	3,173
Agency mortgage-backed securities		2,389		14		5,502		64		7,891		78
Municipal securities		886		15		1,814		17		2,700		32
Corporate bonds		9,583		258		2,952		42		12,535		300
Asset backed securities		17,005		626		-		-		17,005		626
Trust preferred securities		-		-		1,883		1,187		1,883		1,187
Total Available for Sale	$	146,024	$	4,086	$	12,151	$	1,310	$	158,175	$	5,396

	At December 31, 2015
	Less than 12 months				12 months or more				Total
(dollars in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
U.S. Government agencies	$	11,954	$	72	$	-	$	-	$	11,954	$	72
Collateralized mortgage obligations		68,888		732		15,956		48		84,844		780
Agency mortgage-backed securities		7,711		21		-		-		7,711		21
Total Held to Maturity	$	88,553	$	825	$	15,956	$	48	$	104,509	$	873

	At December 31, 2014
	Less than 12 months				12 months or more				Total
(dollars in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Collateralized mortgage obligations	$	17,331	$	96	$	-	$	-	$	17,331	$	96
Agency mortgage-backed securities		3,997		2		1,069		31		5,066		33
Municipal securities		1,298		10		1,395		30		2,693		40
Corporate bonds		4,880		34		-		-		4,880		34
Trust preferred securities		-		-		3,193		2,068		3,193		2,068
Total Available for Sale	$	27,506	$	142	$	5,657	$	2,129	$	33,163	$	2,271

	At December 31, 2014
	Less than 12 months				12 months or more				Total
(dollars in thousands)	Fair Value		Unrealized  Losses		Fair Value		Unrealized  Losses		Fair Value		Unrealized  Losses
Collateralized mortgage obligations	$	19,766	$	92	$	9,232	$	52	$	28,998	$	144
Total Held to Maturity	$	19,766	$	92	$	9,232	$	52	$	28,998	$	144

Schedule of Trust Preferred Securities [Table Text Block]

(dollars in thousands)	Class / Tranche	Amortized Cost		Fair Value		Unrealized Losses			Lowest Credit Rating Assigned	Number of Banks Currently Performing		Deferrals / Defaults as % of Current Balance			Conditional Default Rates for 2015 and beyond			Cumulative OTTI Life to Date
TPREF Funding II	Class B Notes	$	732	$	416	$	(316	)	C		20		36	%		0.39	%	$	267
TPREF Funding III	Class B2 Notes		1,518		901		(617	)	C		15		32			0.42			483
ALESCO Preferred Funding V	Class C1 Notes		820		566		(254	)	C		40		17			0.32			180
Total		$	3,070	$	1,883	$	(1,187	)			75		28	%				$	930