Note 4 - Loans and Allowance for Loan Losses (Tables)

12 Months Ended

Dec. 31, 2015

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

(In thousands)	2015		2014
Consumer:
Credit cards	$	177,288	$	185,380
Other consumer		208,380		103,402
Total consumer		385,668		288,782
Real estate:
Construction		279,740		181,968
Single family residential		696,180		455,563
Other commercial		1,229,072		714,797
Total real estate		2,204,992		1,352,328
Commercial:
Commercial		500,116		291,820
Agricultural		148,563		115,658
Total commercial		648,679		407,478
Other		7,115		5,133
Loans		3,246,454		2,053,721
Loans acquired, not covered by FDIC loss share (net of discount and allowance) (1)		1,672,901		575,980
Loans acquired, covered by FDIC loss share (net of discount and allowance) (1)		--		106,933
Total loans	$	4,919,355	$	2,736,634

Schedule of Financing Receivables, Non Accrual Status [Table Text Block]

(In thousands)	2015		2014
Consumer:
Credit cards	$	212	$	197
Other consumer		442		405
Total consumer		654		602
Real estate:
Construction		4,955		4,863
Single family residential		5,453		4,010
Other commercial		4,420		1,522
Total real estate		14,828		10,395
Commercial:
Commercial		1,968		585
Agricultural		264		456
Total commercial		2,232		1,041
Total	$	17,714	$	12,038

Past Due Financing Receivables [Table Text Block]

(In thousands)	Gross 30-89 Days Past Due		90 Days or More Past Due		Total Past Due		Current		Total Loans		90 Days Past Due & Accruing
December 31, 2015
Consumer:
Credit cards	$	639	$	479	$	1,118	$	176,170	$	177,288	$	267
Other consumer		1,879		648		2,527		205,853		208,380		374
Total consumer		2,518		1,127		3,645		382,023		385,668		641
Real estate:
Construction		1,328		4,511		5,839		273,901		279,740		--
Single family residential		4,856		3,342		8,198		687,982		696,180		364
Other commercial		869		3,302		4,171		1,224,901		1,229,072		25
Total real estate		7,053		11,155		18,208		2,186,784		2,204,992		389
Commercial:
Commercial		3,427		637		4,064		496,052		500,116		90
Agricultural		285		243		528		148,035		148,563		56
Total commercial		3,712		880		4,592		644,087		648,679		146
Other		108		93		--		7,115		7,115		15
Total	$	13,391	$	13,255	$	26,445	$	3,220,009	$	3,246,454	$	1,191
December 31, 2014
Consumer:
Credit cards	$	687	$	457	$	1,144	$	184,236	$	185,380	$	--
Other consumer		1,349		447		1,796		101,606		103,402		223
Total consumer		2,036		904		2,940		285,842		288,782		223
Real estate:
Construction		760		570		1,330		180,638		181,968		177
Single family residential		4,913		2,213		7,126		448,437		455,563		248
Other commercial		1,987		847		2,834		711,963		714,797		--
Total real estate		7,660		3,630		11,290		1,341,038		1,352,328		425
Commercial:
Commercial		381		354		735		291,085		291,820		--
Agricultural		119		109		228		115,430		115,658		40
Total commercial		500		463		963		406,515		407,478		40
Other		--		--		--		5,133		5,133		--
Total	$	10,196	$	4,997	$	15,193	$	2,038,528	$	2,053,721	$	688

Impaired Financing Receivables [Table Text Block]

(In thousands)	Unpaid Contractual Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance		Average Investment in Impaired Loans		Interest Income Recognized
December 31, 2015
Consumer:
Credit cards	$	479	$	479	$	--	$	479	$	7	$	411	$	30
Other consumer		459		423		19		442		85		562		40
Total consumer		938		902		19		921		92		973		70
Real estate:
Construction		5,678		1,636		3,318		4,954		441		5,417		390
Single family residential		5,938		4,702		945		5,647		1,034		5,148		370
Other commercial		5,688		4,328		88		4,416		832		3,147		227
Total real estate		17,304		10,666		4,351		15,017		2,307		13,712		987
Commercial:
Commercial		2,656		1,654		334		1,988		387		1,736		125
Agricultural		264		264		--		264		45		254		18
Total commercial		2,920		1,918		334		2,252		432		1,990		143
Total	$	21,162	$	13,486	$	4,704	$	18,190	$	2,831	$	16,675	$	1,200
December 31, 2014
Consumer:
Credit cards	$	197	$	197	$	--	$	197	$	6	$	425	$	20
Other consumer		604		610		9		619		118		780		34
Total consumer		801		807		9		816		124		1,205		54
Real estate:
Construction		7,400		7,020		--		7,020		599		4,334		189
Single family residential		4,442		3,948		377		4,325		899		4,291		187
Other commercial		1,955		1,446		36		1,482		268		6,788		296
Total real estate		13,797		12,414		413		12,827		1,766		15,413		672
Commercial:
Commercial		1,227		566		--		566		102		630		27
Agricultural		501		460		--		460		83		234		10
Total commercial		1,728		1,026		--		1,026		185		864		38
Total	$	16,236	$	14,247	$	422	$	14,669	$	2,075	$	17,482	$	764

Troubled Debt Restructurings on Financing Receivables [Table Text Block]

	Accruing TDR Loans				Nonaccrual TDR Loans				Total TDR Loans
(Dollars in thousands)	Number		Balance		Number		Balance		Number		Balance
December 31, 2015
Consumer:
Other consumer		--	$	--		1	$	13		1		13
Total consumer		--		--		1		13		1		13
Real estate:
Construction		--		--		1		253		1	$	253
Single-family residential		2		137		11		1,335		13		1,472
Other commercial		4		2,894		1		597		5		3,491
Total real estate		6		3,031		13		2,185		19		5,216
Commercial:
Commercial		--		--		5		332		5		332
Total commercial		--		--		5		332		5		332
Total		6	$	3,031		19	$	2,530		25	$	5,561
December 31, 2014
Real estate:
Construction		--	$	--		1	$	391		1	$	391
Single-family residential		2		393		1		3		3		396
Other commercial		3		1,840		1		614		4		2,454
Total real estate		5		2,233		3		1,008		8		3,241
Total		5	$	2,233		3	$	1,008		8	$	3,241

Schedule of Loans Restructured as TDRs [Table Text Block]

							Modification Type
(Dollars in thousands)	Number of Loans		Balance Prior to TDR		Balance at December 31		Change in Maturity Date		Change in Rate		Financial Impact on Date of Restructure
Year Ended December 31, 2015
Consumer:
Other consumer		1	$	13	$	13	$	13	$	--	$	--
Total consumer		1		13		13		13		--		--
Real estate:
Single-family residential		11		1,179		1,103		1,103
Other commercial		1		1,097		1,097		1,097		--	$	--
Total real estate		12		2,276		2,200		2,200		--		--
Commercial:
Commercial		5		347		332		332		--		--
Total commercial		5		347		332		332		--		--
Total		18	$	2,636	$	2,545	$	2,545	$	--	$	--
Year Ended December 31, 2014
Real estate:
Other commercial		2	$	1,427	$	1,427	$	396	$	1,031	$	--
Total real estate		2		1,427		1,427		396		1,031		--
Commercial:
Commercial		1	$	598	$	--	$	--	$	--	$	--
Total commercial		1		598		--		--		--		--
Total		3	$	2,025	$	1,427	$	396	$	1,031	$	--

Financing Receivable Credit Quality Indicators [Table Text Block]

(In thousands)	Risk Rate 1-4		Risk Rate 5		Risk Rate 6		Risk Rate 7		Risk Rate 8		Total
December 31, 2015
Consumer:
Credit cards	$	176,809	$	--	$	479	$	--	$	--	$	177,288
Other consumer		207,069		--		1,262		49		--		208,380
Total consumer		383,878		--		1,741		49		--		385,668
Real estate:
Construction		270,386		319		9,019		16		--		279,740
Single family residential		679,484		2,701		13,824		171		--		696,180
Other commercial		1,178,817		5,404		44,261		590		--		1,229,072
Total real estate		2,128,687		8,424		67,104		777		--		2,204,992
Commercial:
Commercial		487,563		2,760		9,787		6		--		500,116
Agricultural		147,788		--		775		--		--		148,563
Total commercial		635,351		2,760		10,562		6		--		648,679
Other		7,022		--		93		--		--		7,115
Loans acquired, not covered by FDIC loss share		1,590,384		9,150		69,219		3,689		459		1,672,901
Total	$	4,745,322	$	20,334	$	148,719	$	4,521	$	459	$	4,919,355

(In thousands)	Risk Rate 1-4		Risk Rate 5		Risk Rate 6		Risk Rate 7		Risk Rate 8		Total
December 31, 2014
Consumer:
Credit cards	$	184,923	$	--	$	457	$	--	$	--	$	185,380
Other consumer		102,515		5		839		43		--		103,402
Total consumer		287,438		5		1,296		43		--		288,782
Real estate:
Construction		176,825		84		5,059		--		--		181,968
Single family residential		446,040		1,776		7,665		82		--		455,563
Other commercial		698,329		7,074		9,394		--		--		714,797
Total real estate		1,321,194		8,934		22,118		82		--		1,352,328
Commercial:
Commercial		271,017		1,544		19,248		11		--		291,820
Agricultural		115,106		20		532		--		--		115,658
Total commercial		386,123		1,564		19,780		11		--		407,478
Other		5,133		--		--		--		--		5,133
Loans acquired, not covered by FDIC loss share		535,728		1,435		36,958		1,854		5		575,980
Loans acquired, covered by FDIC loss share		106,933		--		--		--		--		106,933
Total	$	2,642,549	$	11,938	$	80,152	$	1,990	$	5	$	2,736,634

Schedule of Net (charge-offs)/recoveries, excluding loans acquired [Table Text Block]

(In thousands)	2015			2014
Consumer:
Credit cards	$	(2,217	)	$	(2,292	)
Student loans		--			(38	)
Other consumer		(1,134	)		(1,130	)
Total consumer		(3,351	)		(3,460	)
Real estate:
Construction		(44	)		(356	)
Single family residential		(407	)		(595	)
Other commercial		(926	)		(167	)
Total real estate		(1,377	)		(1,118	)
Commercial:
Commercial		(1,202	)		(704	)
Agricultural		(33	)		(14	)
Total commercial		(1,235	)		(718	)
Total	$	(5,963	)	$	(5,296	)

Allowance for Credit Losses on Financing Receivables [Table Text Block]

(In thousands)	Commercial			Real Estate			Credit Card			Other Consumer and Other			Total
December 31, 2015 (1)
Balance, beginning of year	$	6,962		$	15,161		$	5,445		$	1,460		$	29,028
Provision for loan losses (1)		258			5,738			665			1,625			8,286
Charge-offs		(1,415	)		(1,580	)		(3,107	)		(1,672	)		(7,774	)
Recoveries		180			203			890			538			1,811
Net charge-offs		(1,235	)		(1,377	)		(2,217	)		(1,134	)		(5,963	)
Balance, end of year (1)	$	5,985		$	19,522		$	3,893		$	1,951		$	31,351
Period-end amount allocated to:
Loans individually evaluated for impairment	$	432		$	2,307		$	7		$	85		$	2,831
Loans collectively evaluated for impairment		5,553			17,215			3,886			1,866			28,520
Balance, end of year  (1)	$	5,985		$	19,522		$	3,893		$	1,951		$	31,351
December 31, 2014 (2)
Balance, beginning of year	$	3,205		$	16,885		$	5,430		$	1,922		$	27,442
Provision for loan losses (1)		4,475			(606	)		2,307			706			6,882
Charge-offs		(1,044	)		(2,684	)		(3,188	)		(1,638	)		(8,554	)
Recoveries		326			1,566			896			470			3,258
Net charge-offs		(718	)		(1,118	)		(2,292	)		(1,168	)		(5,296	)
Balance, end of year (2)	$	6,962		$	15,161		$	5,445		$	1,460		$	29,028
Period-end amount allocated to:
Loans individually evaluated for impairment	$	185		$	1,766		$	6		$	118		$	2,075
Loans collectively evaluated for impairment		6,777			13,405			5,439			1,342			26,963
Balance, end of year (2)	$	6,962		$	15,161		$	5,445		$	1,460		$	29,028

(In thousands)	Commercial			Real Estate			Credit Card			Other Consumer and Other			Total
December 31, 2013
Balance, beginning of year	$	3,446		$	15,453		$	7,211		$	1,772		$	27,882
Provision for loan losses		(51	)		2,468			581			1,120			4,118
Charge-offs		(382	)		(1,628	)		(3,263	)		(1,561	)		(6,834	)
Recoveries		192			592			901			591			2,276
Net charge-offs		(190	)		(1,036	)		(2,362	)		(970	)		(4,558	)
Balance, end of year	$	3,205		$	16,885		$	5,430		$	1,922		$	27,442

Schedule of Loans by impairment evaluation [Table Text Block]

(In thousands)	Commercial		Real Estate		Credit Card		Other Consumer and Other		Total
December 31, 2015
Loans individually evaluated for impairment	$	2,252	$	15,017	$	479	$	442	$	18,190
Loans collectively evaluated for impairment		646,427		2,189,975		176,809		215,053		3,228,264
Balance, end of period	$	648,679	$	2,204,992	$	177,288	$	215,495	$	3,246,454
December 31, 2014
Loans individually evaluated for impairment	$	1,026	$	12,827	$	197	$	619	$	14,669
Loans collectively evaluated for impairment		406,452		1,339,501		185,183		107,916		2,039,052
Balance, end of period	$	407,478	$	1,352,328	$	185,380	$	108,535	$	2,053,721