Note 5 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2017

Notes Tables

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

	At March 31, 201 7
(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Collateralized mortgage obligations	$	222,278	$	99	$	(4,761	)	$	217,616
Agency mortgage-backed securities		37,273		24		(1,267	)		36,030
Municipal securities		27,727		255		(342	)		27,640
Corporate bonds		66,698		98		(2,515	)		64,281
Asset-backed securities		14,975		-		(175	)		14,800
Trust preferred securities		3,063		-		(1,102	)		1,961
Total securities available for sale	$	372,014	$	476	$	(10,162	)	$	362,328
U.S. Government agencies	$	97,177	$	31	$	(2,430	)	$	94,778
Collateralized mortgage obligations		196,461		644		(2,788	)		194,317
Agency mortgage-backed securities		127,192		-		(3,608	)		123,584
Other securities		1,020		-		-			1,020
Total securities held to maturity	$	421,850	$	675	$	(8,826	)	$	413,699

	At December 31, 201 6
(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Collateralized mortgage obligations	$	230,252	$	145	$	(5,632	)	$	224,765
Agency mortgage-backed securities		37,973		32		(1,295	)		36,710
Municipal securities		26,825		151		(429	)		26,547
Corporate bonds		66,718		8		(1,978	)		64,748
Asset-backed securities		15,565		-		(416	)		15,149
Trust preferred securities		3,063		-		(1,243	)		1,820
Total securities available for sale	$	380,396	$	336	$	(10,993	)	$	369,739
U.S. Government agencies	$	98,538	$	8	$	(2,238	)	$	96,308
Collateralized mortgage obligations		202,990		793		(2,553	)		201,230
Agency mortgage-backed securities		129,951		1		(3,327	)		126,625
Other securities		1,020		-		-			1,020
Total securities held to maturity	$	432,499	$	802	$	(8,118	)	$	425,183

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	$	650	$	651	$	-	$	-
After 1 year to 5 years		13,088		13,247		4,408		4,376
After 5 years to 10 years		73,254		70,702		93,789		91,422
After 10 years		25,471		24,082		-		-
Collateralized mortgage obligations		222,278		217,616		196,461		194,317
Agency mortgage-backed securities		37,273		36,030		127,192		123,584
Total	$	372,014	$	362,328	$	421,850	$	413,699

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

(dollars in thousands)	201 7		201 6
Beginning Balance, January 1 st	$	937	$	930
Additional credit-related impairment loss on securities for which an other-than-temporary impairment was previously recognized		-		1
Ending Balance, March 31 st	$	937	$	931

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

	At March 31, 2017
	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	$	194,126	$	4,512	$	7,264	$	249	$	201,390	$	4,761
Agency mortgage-backed securities		32,174		1,231		2,973		36		35,147		1,267
Municipal securities		9,598		342		-		-		9,598		342
Corporate bonds		19,546		454		35,934		2,061		55,480		2,515
Asset backed securities		-		-		14,800		175		14,800		175
Trust preferred securities		-		-		1,961		1,102		1,961		1,102
Total Available for Sale	$	255,444	$	6,539	$	62,932	$	3,623	$	318,376	$	10,162

	At March 31, 2017
	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	$	86,540	$	2,398	$	3,355	$	32	$	89,895	$	2,430
Collateralized mortgage obligations		124,180		2,356		20,325		432		144,505		2,788
Agency mortgage-backed securities		123,584		3,608		-		-		123,584		3,608
Total Held to Maturity	$	334,304	$	8,362	$	23,680	$	464	$	357,984	$	8,826

	At December 31 , 201 6
	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	$	192,308	$	5,380	$	7,579	$	252	$	199,887	$	5,632
Agency mortgage-backed securities		29,916		1,260		3,199		35		33,115		1,295
Municipal securities		15,414		429		-		-		15,414		429
Corporate bonds		32,257		1,708		10,726		270		42,983		1,978
Asset backed securities		-		-		15,149		416		15,149		416
Trust preferred securities		-		-		1,820		1,243		1,820		1,243
Total Available for Sale	$	269,895	$	8,777	$	38,473	$	2,216	$	308,368	$	10,993

	At December 31 , 201 6
	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	$	67,725	$	2,198	$	3,586	$	40	$	71,311	$	2,238
Collateralized mortgage obligations		108,974		2,469		8,572		84		117,546		2,553
Agency mortgage-backed securities		97,725		3,327		-		-		97,725		3,327
Total Held to Maturity	$	274,424	$	7,994	$	12,158	$	124	$	286,582	$	8,118

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 2018 and beyond			Cumulative OTTI Life to Date
TPREF Funding II	Class B Notes	$	725	$	428	$	(297	)	C		19		29	%		0.41	%	$	274
TPREF Funding III	Class B2 Notes		1,518		956		(562	)	C		15		28			0.42			483
ALESCO Preferred Funding V	Class C1 Notes		820		577		(243	)	C		40		15			0.43			180
Total		$	3,063	$	1,961	$	(1,102	)			74		24	%				$	937