Note 2 - Securities (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Available-for-sale Securities [Table Text Block]

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
September 30, 2020
U.S. Government agency debt obligations	$	170,970,000	$	658,000	$	(497,000	)	$	171,131,000
Mortgage-backed securities		27,816,000		1,088,000		(1,000	)		28,903,000
Municipal general obligation bonds		95,725,000		5,399,000		0			101,124,000
Municipal revenue bonds		10,385,000		398,000		(17,000	)		10,766,000
Other investments		500,000		0		0			500,000
	$	305,396,000	$	7,543,000	$	(515,000	)	$	312,424,000
December 31, 2019
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 Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
September 30, 2020
U.S. Government agency debt obligations	$	67,172,000	$	497,000	$	0	$	0	$	67,172,000	$	497,000
Mortgage-backed securities		0		0		32,000		1,000		32,000		1,000
Municipal general obligation bonds		0		0		0		0		0		0
Municipal revenue bonds		830,000		17,000		0		0		830,000		17,000
	$	68,002,000	$	514,000	$	32,000	$	1,000	$	68,034,000	$	515,000

	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 Yield	Amortized Cost		Fair Value
Due in 2020	4.08%	$	410,000	$	411,000
Due in 2021 through 2025	1.63		70,413,000		71,694,000
Due in 2026 through 2030	1.89		138,085,000		141,743,000
Due in 2031 and beyond	2.27		68,172,000		69,173,000
Mortgage-backed securities	2.19		27,816,000		28,903,000
Other investments	4.25		500,000		500,000
Total available for sale securities	1.95%	$	305,396,000	$	312,424,000