Note 2 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

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

(Dollars In Thousands)	March 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U. S. Government agency securities	$	28,507	$	330	$	(99	)	$	28,738
Mortgage-backed securities		8,353		65		(45	)		8,373
Municipal securities		17,017		661		(32	)		17,646
	$	53,877	$	1,056	$	(176	)	$	54,757

(Dollars In Thousands)	December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U. S. Government agency securities	$	26,385	$	242	$	(191	)	$	26,436
Mortgage-backed securities		8,803		60		(90	)		8,773
Municipal securities		16,756		594		(15	)		17,335
	$	51,944	$	896	$	(296	)	$	52,544

Schedule of Unrealized Loss on Investments [Table Text Block]

	March 31, 2016
	Less than 12 months					12 months or more					Total
(Dollars In Thousands)	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U. S. Government agency securities	$	6,850	$	(50	)	$	3,284	$	(49	)	$	10,134	$	(99	)
Mortgage-backed securities		1,562		(5	)		2,504		(40	)		4,066		(45	)
Municipal securities		1,743		(26	)		539		(6	)		2,282		(32	)
	$	10,155	$	(81	)	$	6,327	$	(95	)	$	16,482	$	(176	)

	December 31, 2015
	Less than 12 months					12 months or more					Total
(Dollars In Thousands)	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. Government agency securities	$	8,878	$	(106	)	$	5,275	$	(85	)	$	14,153	$	(191	)
Mortgage-backed securities		3,447		(32	)		2,718		(58	)		6,165		(90	)
Municipal securities		805		(10	)		526		(5	)		1,331		(15	)
	$	13,130	$	(148	)	$	8,519	$	(148	)	$	21,649	$	(296	)

Investments Classified by Contractual Maturity Date [Table Text Block]

(Dollars In Thousands)	Amortized Cost		Fair Value
One year or less	$	2	$	2
Over one through five years		1,963		1,993
Over five through ten years		10,708		10,771
Greater than 10 years		41,204		41,991
	$	53,877	$	54,757