Note 2 - Securities (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Available-for-sale Securities [Table Text Block]

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
March 31, 2020
U.S. Government agency debt obligations	$	161,931,000	$	1,893,000	$	0		$	163,824,000
Mortgage-backed securities		38,514,000		1,258,000		(3,000	)		39,769,000
Municipal general obligation bonds		101,006,000		2,880,000		(21,000	)		103,865,000
Municipal revenue bonds		4,129,000		61,000		(1,000	)		4,189,000
Other investments		500,000		0		0			500,000
	$	306,080,000	$	6,092,000	$	(25,000	)	$	312,147,000
December 31, 201 9
U.S. Government agency debt obligations	$	185,103,000	$	2,449,000	$	(1,142,000	)	$	186,410,000
Mortgage-backed securities		41,998,000		554,000		(82,000	)		42,470,000
Municipal general obligation bonds		98,245,000		2,864,000		(30,000	)		101,079,000
Municipal revenue bonds		4,133,000		63,000		0			4,196,000
Other investments		500,000		0		0			500,000
	$	329,979,000	$	5,930,000	$	(1,254,000	)	$	334,655,000

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

	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	Value		Loss		Value		Loss		Value		Loss
March 31, 2020
U.S. Government agency debt obligations	$	0	$	0	$	0	$	0	$	0	$	0
Mortgage-backed securities		1,487,000		2,000		26,000		1,000		1,513,000		3,000
Municipal general obligation bonds		3,894,000		19,000		713,000		2,000		4,607,000		21,000
Municipal revenue bonds		0		0		554,000		1,000		554,000		1,000
	$	5,381,000	$	21,000	$	1,293,000	$	4,000	$	6,674,000	$	25,000

	Less than 12 Months				12 Months or More				Total
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
December 31, 2019
U.S. Government agency debt obligations	$	25,650,000	$	349,000	$	73,913,000	$	793,000	$	99,563,000	$	1,142,000
Mortgage-backed securities		2,838,000		28,000		10,423,000		54,000		13,261,000		82,000
Municipal general obligation bonds		3,755,000		18,000		994,000		12,000		4,749,000		30,000
Municipal revenue bonds		0		0		0		0		0		0
	$	32,243,000	$	395,000	$	85,330,000	$	859,000	$	117,573,000	$	1,254,000

Investments Classified by Contractual Maturity Date [Table Text Block]

	Weighted
	Average	Amortized		Fair
	Yield (%)	Cost		Value
Due in 2020	2.15	$	13,522,000	$	13,531,000
Due in 2021 through 2025	2.02		68,273,000		68,995,000
Due in 2026 through 2030	2.43		114,339,000		116,535,000
Due in 2031 and beyond	3.05		70,932,000		72,817,000
Mortgage-backed securities	2.69		38,514,000		39,769,000
Other investments	5.25		500,000		500,000
Total available for sale securities	2.51	$	306,080,000	$	312,147,000