Note 2 - Securities (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Available-for-sale Securities [Table Text Block]

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
September 30, 2019
U.S. Government agency debt obligations	$	195,926,000	$	3,151,000	$	(958,000	)	$	198,119,000
Mortgage-backed securities		42,563,000		524,000		(116,000	)		42,971,000
Municipal general obligation bonds		97,806,000		2,753,000		(22,000	)		100,537,000
Municipal revenue bonds		3,346,000		61,000		(1,000	)		3,406,000
Other investments		500,000		0		0			500,000
	$	340,141,000	$	6,489,000	$	(1,097,000	)	$	345,533,000
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
September 30, 2019
U.S. Government agency debt obligations	$	15,630,000	$	370,000	$	53,935,000	$	588,000	$	69,565,000	$	958,000
Mortgage-backed securities		0		0		17,049,000		116,000		17,049,000		116,000
Municipal general obligation bonds		1,848,000		4,000		2,758,000		18,000		4,606,000		22,000
Municipal revenue bonds		0		0		554,000		1,000		554,000		1,000
Other investments		0		0		0		0		0		0
	$	17,478,000	$	374,000	$	74,296,000	$	723,000	$	91,774,000	$	1,097,000

	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		1.92%	$	3,487,000	$	3,488,000
Due in 2020 through 2024		2.31		67,321,000		67,802,000
Due in 2025 through 2029		2.70		113,584,000		115,696,000
Due in 2030 and beyond		3.11		112,686,000		115,076,000
Mortgage-backed securities		2.87		42,563,000		42,971,000
Other investments		4.50		500,000		500,000
Total available for sale securities		2.78%	$	340,141,000	$	345,533,000