Note 2 - Securities Available for Sale (Tables)

9 Months Ended

Sep. 30, 2024

Notes Tables

Debt Securities, Available-for-Sale [Table Text Block]

September 30, 2024		U.S. Treasury Notes		U.S. government agency obligations			Municipal obligations			Mortgage-backed residential obligations			Collateralized mortgage obligations			Total available-for-sale
	(Dollars in thousands)
1 year or less	$	—	$	999		$	—		$	—		$	—		$	999
1 to 5 years		—		3,154			1,470			9,704			13,756			28,084
5 to 10 years		—		4,775			1,282			17,099			10,152			33,308
After 10 years		—		—			9,462			1,241			2,146			12,849
Fair value		—		8,928			12,214			28,044			26,054			75,240
Gross unrealized gains		—		—			—			—			—			—
Gross unrealized losses		—		(848	)		(1,901	)		(3,646	)		(3,155	)		(9,550	)
Amortized cost	$	—	$	9,776		$	14,115		$	31,690		$	29,209		$	84,790

December 31, 2023		U.S. Treasury Notes			U.S. government agency obligations			Municipal obligations			Mortgage-backed residential obligations			Collateralized mortgage obligations			Total available-for-sale
	(Dollars in thousands)
1 year or less	$	2,973		$	—		$	1,292		$	—		$	—		$	4,265
1 to 5 years		—			4,769			1,461			8,976			12,919			28,125
5 to 10 years		—			4,337			882			19,777			9,756			34,752
After 10 years		—			—			9,935			1,598			3,460			14,993
Fair value		2,973			9,106			13,570			30,351			26,135			82,135
Gross unrealized gains		—			—			1			—			—			1
Gross unrealized losses		(22	)		(1,128	)		(1,882	)		(4,533	)		(3,938	)		(11,503	)
Amortized cost	$	2,995		$	10,234		$	15,451		$	34,884		$	30,073		$	93,637

Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]

	Less than 12 Months				12 Months or Longer				Total
	(Dollars in thousands)
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	Value		Losses		Value		Losses		Value		Losses
September 30, 2024
U.S. Treasury Notes	$	—	$	—	$	—	$	—	$	—	$	—
U.S. government agency obligations		—		—		8,928		848		8,928		848
Municipal obligations		484		10		11,730		1,891		12,214		1,901
Mortgage-backed residential obligations		—		—		28,044		3,646		28,044		3,646
Collateralized mortgage obligations		—		—		26,054		3,155		26,054		3,155
Total	$	484	$	10	$	74,756	$	9,540	$	75,240	$	9,550
December 31, 2023
U.S. Treasury Notes	$	—	$	—	$	2,973	$	22	$	2,973	$	22
U.S. government agency obligations		—		—		9,106		1,128		9,106		1,128
Municipal obligations		279		1		12,796		1,881		13,075		1,882
Mortgage-backed residential obligations		—		—		30,351		4,533		30,351		4,533
Collateralized mortgage obligations		—		—		26,135		3,938		26,135		3,938
Total	$	279	$	1	$	81,361	$	11,502	$	81,640	$	11,503