Note 6 - Securities - (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

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

	December 31, 2022
	(Dollars in thousands)
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
U.S. Treasury Securities	$	32,783	$	-	$	2,668	$	30,115
U.S. Government Agencies		50,288		-		2,916		47,372
Corporate Securities		48,475		25		2,496		46,004
Mortgage-Backed Securities		506,671		267		55,213		451,725
Municipal Securities		347,382		11		31,858		315,535
Total Securities Available for Sale	$	985,599	$	303	$	95,151	$	890,751

	December 31, 2021
	(Dollars in thousands)
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
U.S. Treasury Securities	$	22,751	$	-	$	437	$	22,314
U.S. Government Agencies		27,867		2		376		27,493
Corporate Securities		45,876		812		106		46,582
Mortgage-Backed Securities		555,528		3,246		6,435		552,339
Municipal Securities		370,421		4,100		2,188		372,333
Total Securities Available for Sale	$	1,022,443	$	8,160	$	9,542	$	1,021,061

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

	December 31, 2022
	Less Than 12 Months				12 Months or Greater				Total
	(Dollars in thousands)
			Gross				Gross				Gross
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	Value		Losses		Value		Losses		Value		Losses
U.S. Treasury Securities	$	9,702	$	374	$	20,413	$	2,294	$	30,115	$	2,668
U.S. Government Agencies		24,405		595		22,967		2,321		47,372		2,916
Corporate Securities		19,564		1,359		6,385		1,137		25,949		2,496
Mortgage-Backed Securities		115,692		7,473		324,043		47,740		439,735		55,213
Municipal Securities		143,035		10,206		131,944		21,652		274,979		31,858
Total Securities Available for Sale	$	312,398	$	20,007	$	505,752	$	75,144	$	818,150	$	95,151

	December 31, 2021
	Less Than 12 Months				12 Months or Greater				Total
	(Dollars in thousands)
			Gross				Gross				Gross
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	Value		Losses		Value		Losses		Value		Losses
U.S. Treasury Securities	$	22,314	$	437	$	-	$	-	$	22,314	$	437
U.S. Government Agencies		24,980		376		-		-		24,980		376
Corporate Securities		7,350		106		-		-		7,350		106
Mortgage-Backed Securities		407,986		6,108		18,985		327		426,971		6,435
Municipal Securities		145,649		1,872		10,161		316		155,810		2,188
Total Securities Available for Sale	$	608,279	$	8,899	$	29,146	$	643	$	637,425	$	9,542

Investments Classified by Contractual Maturity Date [Table Text Block]

	Amortized		Fair
	Cost		Value
	(Dollars in thousands)
Less Than One Year	$	18,071	$	17,908
One to Five Years		232,550		218,789
Over Five to Ten Years		373,007		336,559
Over Ten Years		361,971		317,495
Total Securities Available for Sale	$	985,599	$	890,751

Equity Method Investments [Table Text Block]

	December 31,
	2022		2021
	(Dollars in thousands)
McLarty Capital Partners SBIC, L.P.	$	878	$	1,432
McLarty Capital Partners SBIC II, L.P.		2,437		2,246
Firmament Capital Partners SBIC III, L.P.		1,787		1,033
Bluehenge Capital Secured Debt SBIC, L.P.		3,934		1,682
Bluehenge Capital Secured Debt SBIC II, L.P.		296		-
New Louisiana Agnel Fund 2, LLC		49		37
Pharos Capital Partners IV-A, L.P.		356		211
Valesco Fund II, LP		1,147		-
GP Capital Partners, LP		277		-
BankTech Ventures, LP		77		60
Jam Fintop BankTech, LP		340		161
Ledyard Capital Managers, LLC		928		989
Mendon Ventures Banktech Fund I, LP		896		154
Castle Creek Launchpad Fund I, LP		211		-
Work America Capital Fund I, LP		629		-
	$	14,242	$	8,005