Note 3 - Investment Securities Available for Sale (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

	December 31, 2016
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
(Dollar amounts in thousands)	Cost		Gains		Losses			Value
U.S. government agency securities	$	10,158	$	174	$	(96	)	$	10,236
Obligations of states and political subdivisions:
Taxable		1,615		129		(4	)		1,740
Tax-exempt		78,327		1,678		(522	)		79,483
Mortgage-backed securities in government-sponsored entities		20,128		202		(261	)		20,069
Private-label mortgage-backed securities		1,579		130		-			1,709
Total debt securities		111,807		2,313		(883	)		113,237
Equity securities in financial institutions		750		389		-			1,139
Total	$	112,557	$	2,702	$	(883	)	$	114,376

	December 31, 2015
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
(Dollar amounts in thousands)	Cost		Gains		Losses			Value
U.S. government agency securities	$	21,655	$	245	$	(271	)	$	21,629
Obligations of states and political subdivisions:
Taxable		1,989		134		-			2,123
Tax-exempt		91,940		3,402		(175	)		95,167
Mortgage-backed securities in government-sponsored entities		24,480		316		(272	)		24,524
Private-label mortgage-backed securities		2,079		184		-			2,263
Total debt securities		142,143		4,281		(718	)		145,706
Equity securities in financial institutions		750		64		-			814
Total	$	142,893	$	4,345	$	(718	)	$	146,520

Investments Classified by Contractual Maturity Date [Table Text Block]

	Amortized		Fair
(Dollar amounts in thousands)	Cost		Value
Due in one year or less	$	3,693	$	3,759
Due after one year through five years		9,487		9,796
Due after five years through ten years		11,870		12,248
Due after ten years		86,757		87,434
Total	$	111,807	$	113,237

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

	2016			2015			2014
Proceeds from sales	$	9,063		$	15,686		$	8,383
Gross realized gains		309			440			306
Gross realized losses		(6	)		(117	)		(58	)

Schedule of Unrealized Loss on Investments [Table Text Block]

	December 31, 2016
	Less than Twelve Months					Twelve Months or Greater					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
(Dollar amounts in thousands)	Value		Losses			Value		Losses			Value		Losses
U.S. government agency securities	$	3,803	$	(47	)	$	1,316	$	(49	)	$	5,119	$	(96	)
Obligations of states and political subdivisions
Tax-exempt		23,554		(522	)		-		-			23,554		(522	)
Taxable		502		(4	)		-		-			502		(4	)
Mortgage-backed securities in government-sponsored entities		9,066		(126	)		4,438		(135	)		13,504		(261	)
Total	$	36,925	$	(699	)	$	5,754	$	(184	)	$	42,679	$	(883	)

	December 31, 2015
	Less than Twelve Months					Twelve Months or Greater					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
(Dollar amounts in thousands)	Value		Losses			Value		Losses			Value		Losses
U.S. government agency securities	$	3,818	$	(57	)	$	10,872	$	(214	)	$	14,690	$	(271	)
Obligations of states and political subdivisions
Tax-exempt		1,268		(9	)		9,394		(166	)		10,662		(175	)
Mortgage-backed securities in government-sponsored entities		8,725		(86	)		6,685		(186	)		15,410		(272	)
Total	$	13,811	$	(152	)	$	26,951	$	(566	)	$	40,762	$	(718	)