Note 7 - Investments, Held to Maturity ("HTM") (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

Debt Securities, Held-to-Maturity [Table Text Block]

	March 31, 2024
Dollars in thousands		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
US Treasury Bonds	$	23,904	$	—	$	(249	)	$	23,655
FHLB Bond		1,000		—		(2	)		998
Student Loan Pools		15,995		392		—			16,387
SBA Bonds		10,282		378		—			10,660
Taxable Municipal Bonds		965		—		(32	)		933
MBS		106,939		385		(5,019	)		102,305
Total HTM Securities	$	159,085	$	1,155	$	(5,302	)	$	154,938

	December 31, 2023
Dollars in thousands		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
US Treasury Bonds	$	23,874	$	—	$	(278	)	$	23,596
FHLB Bond		1,000		—		—			1,000
Student Loan Pools		16,881		278		—			17,159
SBA Bonds		11,305		493		—			11,798
Taxable Municipal Bonds		962		—		(28	)		934
MBS		109,050		96		(5,093	)		104,053
Total HTM Securities	$	163,072	$	867	$	(5,399	)	$	158,540

Held to Maturity Investments, Maturity Dates and Yields [Table Text Block]

Dollars in thousands		Carrying Value	Average Book Yield
HTM Securities:
Due in one year or less	$	11,991	2.94	%
Due after one year through five years		14,957	3.78	%
Due after five years through ten years		5,268	7.11	%
Due after ten years		19,930	7.10	%
MBS		106,939	4.62	%
Total HTM Securities	$	159,085	4.81	%

Debt Securities, Held to Maturity, Unrealized Loss Position, Fair Value [Table Text Block]

	March 31, 2024
	Less than 12 Months					12 Months or More					Total
Dollars in thousands		Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
US Treasury Bonds	$	—	$	—		$	23,655	$	(249	)	$	23,655	$	(249	)
FHLB Bond		998		(2	)		—		—			998		(2	)
Taxable Municipal Bonds		—		—			933		(32	)		933		(32	)
MBS		3,023		(44	)		56,505		(4,975	)		59,528		(5,019	)
	$	4,021	$	(46	)	$	81,093	$	(5,256	)	$	85,114	$	(5,302	)

	December 31, 2023
	Less than 12 Months					12 Months or More					Total
Dollars in thousands		Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
US Treasury Bonds	$	—	$	—		$	23,596	$	(278	)	$	23,596	$	(278	)
Taxable Municipal Bonds		—		—			934		(28	)		934		(28	)
MBS		40,732		(458	)		58,731		(4,635	)		99,463		(5,093	)
	$	40,732	$	(458	)	$	83,261	$	(4,941	)	$	123,993	$	(5,399	)

Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block]

Dollars in thousands	Amortized Cost
Taxable Municipal Bond
AA	$	965
Total Taxable Municipal Bond	$	965
Private Label MBS
AAA	$	7,260
A		1,566
Not Rated		3,634
Total Private Label MBS	$	12,460