Note 6 - Investments, Available for Sale ("AFS") (Tables)

3 Months Ended

Mar. 31, 2025

Notes Tables

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

	March 31, 2025
Dollars in thousands	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Student Loan Pools	$	38,648	$	93	$	(286	)	$	38,455
Small Business Administration (“SBA”) Bonds		61,208		286		(2,135	)		59,359
Tax Exempt Municipal Bonds		6,719		—		(869	)		5,850
Taxable Municipal Bonds		64,509		—		(10,461	)		54,048
Mortgage-Backed Securities ("MBS")		406,195		279		(23,434	)		383,040
Total AFS Securities	$	577,279	$	658	$	(37,185	)	$	540,752

	December 31, 2024
Dollars in thousands		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Student Loan Pools	$	39,670	$	117	$	(203	)	$	39,584
SBA Bonds		66,491		337		(2,402	)		64,426
Tax Exempt Municipal Bonds		6,746		—		(688	)		6,058
Taxable Municipal Bonds		64,530		—		(11,970	)		52,560
MBS		389,592		346		(26,943	)		362,995
Total AFS Securities	$	567,029	$	800	$	(42,206	)	$	525,623

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

	March 31, 2025
	Less than 12 Months							12 Months or More							Total
Dollars in thousands	Fair Value		Unrealized Losses			#		Fair Value		Unrealized Losses			#		Fair Value		Unrealized Losses
Student Loan Pools	$	10,782	$	(111	)		11	$	20,220	$	(175	)		19	$	31,002	$	(286	)
SBA Bonds		12,429		(135	)		14		22,694		(2,000	)		42		35,123		(2,135	)
Tax Exempt Municipal Bonds		—		—			—		5,850		(869	)		5		5,850		(869	)
Taxable Municipal Bonds		—		—			—		54,048		(10,461	)		59		54,048		(10,461	)
MBS		55,103		(305	)		27		269,088		(23,129	)		195		324,191		(23,434	)
	$	78,314	$	(551	)		52	$	371,900	$	(36,634	)		320	$	450,214	$	(37,185	)

	December 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
Student Loan Pools	$	3,014	$	(10	)		4	$	23,427	$	(193	)		22	$	26,441	$	(203	)
SBA Bonds		10,795		(154	)		12		24,319		(2,248	)		46		35,114		(2,402	)
Tax Exempt Municipal Bonds		—		—			—		6,058		(688	)		5		6,058		(688	)
Taxable Municipal Bonds		—		—			—		52,560		(11,970	)		59		52,560		(11,970	)
MBS		16,510		(152	)		26		270,559		(26,791	)		195		287,069		(26,943	)
	$	30,319	$	(316	)		42	$	376,923	$	(41,890	)		327	$	407,242	$	(42,206	)

Investments Classified by Contractual Maturity Date [Table Text Block]

	March 31, 2025
Dollars in thousands	Amortized Cost		Fair Value
One Year or Less	$	20	$	20
After One – Five Years		16,080		15,607
After Five – Ten Years		52,617		47,558
More Than Ten Years		102,367		94,527
MBS		406,195		383,040
Total AFS Securities	$	577,279	$	540,752