Note 5 - Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure Text Block Supplement [Abstract]

Historical Loss on Unfunded Commitments [Table Text Block]

	Allowance for Loan and Lease Losses			Allowance for Unfunded Commitments		Allowance for Credit Losses
Balance at December 31, 2013		7,609,467			264,323		7,873,790
Provisions for credit losses		1,100,000			25,407		1,125,407
Loans charged off		(1,316,082	)		-		(1,316,082	)
Recoveries		126,585			-		126,585
Balance at December 31, 2014		7,519,970			289,730		7,809,700
Provisions for credit losses		800,000			46,457		846,457
Loans charged off		(702,557	)		-		(702,557	)
Recoveries		249,110			-		249,110
Balance at December 31, 2015	$	7,866,523		$	336,187	$	8,202,710

Schedule of Credit Losses for Financing Receivables, Current [Table Text Block]

	December 31, 2015			December 31, 2014
	(In thousands)
Allowance for loan and lease losses at beginning of period	$	7,520		$	7,609
Allowance for unfunded commitments at beginning of period		290			264
Total allowance for credit losses at beginning of period		7,810			7,873
Provision for loan and lease losses		800			1,100
Provision for unfunded commitments		46			26
Loans charged-off:
Residential real estate		(301	)		(33	)
Commercial real estate		(172	)		(738	)
Commercial construction		-			-
Commercial lots and raw land		(33	)		(110	)
Commercial and Industrial		-			(53	)
Lease receivables		-			(3	)
Consumer real estate		(85	)		(54	)
Consumer lots and raw land		(85	)		(260	)
Home equity lines of credit		(13	)		(13	)
Consumer other		(13	)		(52	)
Total charge-offs		(702	)		(1,316	)
Recoveries of loans previously charged-off:
Residential real estate		1			-
Commercial real estate		83			42
Commercial construction		-			3
Commercial lots and raw land		4			8
Commercial and Industrial		-			9
Consumer real estate		18			30
Consumer lots and raw land		8			-
Home equity lines of credit		36			14
Consumer other		99			21
Total recoveries		249			127
Net charge-offs		(453	)		(1,189	)
Allowance for loan and lease losses at end of period		7,867			7,520
Allowance for unfunded commitments at end of period		336			290
Total allowance for credit losses at end of period	$	8,203		$	7,810

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

	December 31, 2015
	Beginning		Charge-								Ending		Total
	Balance		Offs			Recoveries		Provisions			Balance		Loans
	(In thousands)
Collectively evaluated for impairment:
Residential real estate	$	982	$	(116	)	$	-	$	(136	)	$	730	$	67,142
Residential construction		17		-			-		30			47		3,934
Residential lots and raw land		11		-			-		(9	)		2		157
Commercial real estate		3,516		(3	)		48		504			4,065		328,372
Commercial construction		375		-			-		143			518		42,413
Commercial lots and raw land		377		-			-		(74	)		303		25,655
Commercial and industrial		400		-			4		237			641		45,425
Lease receivables		172		-			-		24			196		17,235
Consumer real estate		250		-			18		(70	)		198		16,959
Consumer construction		19		-			-		(17	)		2		196
Consumer lots and raw land		152		-			-		(27	)		125		8,870
Home equity lines of credit		405		(13	)		1		(42	)		351		29,659
Consumer other		52		(13	)		99		(67	)		71		6,028
Total		6,728		(145	)		170		496			7,249		592,045
Individually evaluated for impairment:
Residential real estate		185		(185	)		1		(1	)		-		1,087
Commercial real estate		167		(169	)		35		(33	)		-		10,342
Commercial construction		-		-			-		-			-		574
Commercial lots and raw land		251		(33	)		-		147			365		2,616
Commercial and industrial		-		-			-		14			14		56
Consumer real estate		19		(85	)		-		96			30		280
Consumer lots and raw land		165		(85	)		8		121			209		773
Home equity lines of credit		5		-			35		(40	)		-		50
Consumer other		-		-			-		-			-		42
Total		792		(557	)		79		304			618		15,820
Grand Total	$	7,520	$	(702	)	$	249	$	800		$	7,867	$	607,865

	December 31, 2014
	Beginning		Charge-								Ending		Total
	Balance		Offs			Recoveries		Provisions			Balance		Loans
	(In thousands)
Collectively evaluated for impairment:
Residential real estate	$	903	$	(33	)	$	-	$	112		$	982	$	62,907
Residential construction		17		-			-		-			17		1,382
Residential lots and raw land		13		-			-		(2	)		11		828
Commercial real estate		3,647		(174	)		36		7			3,516		241,939
Commercial construction		343		-			2		30			375		27,543
Commercial lots and raw land		415		-			-		(38	)		377		24,135
Commercial and industrial		430		(4	)		9		(35	)		400		28,333
Lease receivables		113		(3	)		-		62			172		12,392
Consumer real estate		316		-			30		(96	)		250		18,539
Consumer construction		23		-			-		(4	)		19		1,412
Consumer lots and raw land		203		(232	)		-		181			152		9,728
Home equity lines of credit		463		(12	)		7		(53	)		405		27,976
Consumer other		60		(14	)		21		(15	)		52		3,886
Total		6,946		(472	)		105		149			6,728		461,000
Individually evaluated for impairment:
Residential real estate		-		-			-		185			185		1,740
Commercial real estate		510		(564	)		6		215			167		13,861
Commercial construction		-		-			1		(1	)		-		103
Commercial lots and raw land		-		(110	)		8		353			251		3,367
Commercial and industrial		23		(49	)		-		26			-		46
Consumer real estate		25		(54	)		-		48			19		324
Consumer lots and raw land		105		(28	)		-		88			165		702
Home equity lines of credit		-		(1	)		7		(1	)		5		83
Consumer other		-		(38	)		-		38			-		46
Total		663		(844	)		22		951			792		20,272
Grand Total	$	7,609	$	(1,316	)	$	127	$	1,100		$	7,520	$	481,272