Note 2 - Securities (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Available-for-sale Securities [Table Text Block]

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
June 30, 2019
U.S. Government agency debt obligations	$	199,719,000	$	2,489,000	$	(1,498,000	)	$	200,710,000
Mortgage-backed securities		45,380,000		449,000		(142,000	)		45,687,000
Municipal general obligation bonds		94,896,000		2,297,000		(58,000	)		97,135,000
Municipal revenue bonds		3,847,000		50,000		(5,000	)		3,892,000
Other investments		500,000		0		0			500,000
	$	344,342,000	$	5,285,000	$	(1,703,000	)	$	347,924,000
December 31, 201 8
U.S. Government agency debt obligations	$	196,109,000	$	310,000	$	(9,342,000	)	$	187,077,000
Mortgage-backed securities		44,263,000		187,000		(792,000	)		43,658,000
Municipal general obligation bonds		103,235,000		427,000		(1,165,000	)		102,497,000
Municipal revenue bonds		3,688,000		4,000		(58,000	)		3,634,000
Other investments		500,000		0		0			500,000
	$	347,795,000	$	928,000	$	(11,357,000	)	$	337,366,000

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

	Less than 12 Months				12 Months or More				Total
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
June 30, 2019
U.S. Government agency debt obligations	$	0	$	0	$	82,942,000	$	1,498,000	$	82,942,000	$	1,498,000
Mortgage-backed securities		0		0		20,419,000		142,000		20,419,000		142,000
Municipal general obligation bonds		797,000		4,000		7,614,000		54,000		8,411,000		58,000
Municipal revenue bonds		0		0		1,108,000		5,000		1,108,000		5,000
Other investments		0		0		0		0		0		0
	$	797,000	$	4,000	$	112,083,000	$	1,699,000	$	112,880,000	$	1,703,000

	Less than 12 Months				12 Months or More				Total
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
December 31, 2018
U.S. Government agency debt obligations	$	31,220,000	$	1,136,000	$	136,445,000	$	8,206,000	$	167,665,000	$	9,342,000
Mortgage-backed securities		11,460,000		136,000		23,762,000		656,000		35,222,000		792,000
Municipal general obligation bonds		28,923,000		299,000		43,961,000		866,000		72,884,000		1,165,000
Municipal revenue bonds		1,188,000		11,000		1,372,000		47,000		2,560,000		58,000
Other investments		0		0		0		0		0		0
	$	72,791,000	$	1,582,000	$	205,540,000	$	9,775,000	$	278,331,000	$	11,357,000

Investments Classified by Contractual Maturity Date [Table Text Block]

	Weighted Average Yield		Amortized Cost		Fair Value
Due in 2019		2.02%	$	6,087,000	$	6,085,000
Due in 2020 through 2024		2.29		67,392,000		67,859,000
Due in 2025 through 2029		2.72		115,087,000		116,683,000
Due in 2030 and beyond		3.20		109,896,000		111,110,000
Mortgage-backed securities		2.87		45,380,000		45,687,000
Other investments		6.00		500,000		500,000
Total available for sale securities		2.80%	$	344,342,000	$	347,924,000