Note 11 - Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	Fair Value Measurements at June 30, 2022 Using
	Quoted Prices in
	Active Markets		Significant Other		Significant
	for Identical		Observable Inputs		Unobservable
	Assets (Level 1)		(Level 2)		Inputs (Level 3)		Total
Assets Measured on a Recurring Basis:	(In Thousands)
Available-for-sale debt securities:
U.S. Treasury securities	$	5,966	$	-	$	-	$	5,966
Government agencies		-		14		-		14
Mortgage-backed securities		-		285,428		-		285,428
State and municipal securities		-		16,280		-		16,280
Corporate debt		-		410,775		6,000		416,775
Total available-for-sale debt securities		5,966		712,497		6,000		724,463
Interest rate cap derivative		-		6,446		-		6,446
Total assets at fair value	$	5,966	$	718,943	$	6,000	$	730,909

	Fair Value Measurements at December 31, 2021 Using
	Quoted Prices in
	Active Markets		Significant Other		Significant
	for Identical		Observable Inputs		Unobservable
	Assets (Level 1)		(Level 2)		Inputs (Level 3)		Total
Assets Measured on a Recurring Basis:	(In Thousands)
Available-for-sale debt securities:
U.S. Treasury securities	$	9,104	$	-	$	-	$	9,104
Government agencies		-		6,041		-		6,041
Mortgage-backed securities		-		425,161		-		425,161
State and municipal securities		-		21,634		-		21,634
Corporate debt		-		363,638		16,992		380,630
Total available-for-sale debt securities		9,104		816,474		16,992		842,570
Interest rate cap derivative		-		1,152		-		1,152
Total assets at fair value	$	9,104	$	817,626	$	16,992	$	843,722

Fair Value Measurements, Nonrecurring [Table Text Block]

	Fair Value Measurements at June 30, 2022
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets Measured on a Nonrecurring Basis:	(In Thousands)
Loans individually evaluated	$	-	$	-	$	56,673	$	56,673
Other real estate owned and repossessed assets		-		-		1,207		1,207
Total assets at fair value	$	-	$	-	$	57,880	$	57,880

	Fair Value Measurements at December 31, 2021
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets Measured on a Nonrecurring Basis:	(In Thousands)
Loans individually evaluated	$	-	$	-	$	73,173	$	73,173
Other real estate owned and repossessed assets		-		-		1,208		1,208
Total assets at fair value	$	-	$	-	$	74,381	$	74,381

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

	For the three months ended June 30,						For the six months ended June 30,
	2022			2021			2022			2021
	Available-for-sale Securities			Available-for-sale Securities			Available-for-sale Securities			Available-for-sale Securities
	(In Thousands)
Fair value, beginning of period	$	11,500		$	10,301		$	16,992		$	-
Transfers into Level 3		-			-			-			6,000
Total realized gains included in income		-			-			-			-
Changes in unrealized gains/losses included in other comprehensive income for assets and liabilities still held at period-end		(462	)		193			(805	)		494
Purchases		-			8,500			-			12,500
Transfers out of Level 3		(5,038	)		(4,000	)		(10,187	)		(4,000	)
Fair value, end of period	$	6,000		$	14,994		$	6,000		$	14,994

Fair Value, by Balance Sheet Grouping [Table Text Block]

	June 30, 2022				December 31, 2021
	Carrying				Carrying
	Amount		Fair Value		Amount		Fair Value
	(In Thousands)
Financial Assets:
Level 1 inputs:
Cash and due from banks	$	1,587,149	$	1,587,149	$	4,163,724	$	4,163,724
Level 2 inputs:
Federal funds sold		101,447		101,447		58,372		58,372
Held to maturity debt securities		1,065,505		1,003,590		462,707		466,036
Mortgage loans held for sale		3,451		3,390		1,114		1,111
Level 3 inputs:
Held to maturity debt securities		250		250		250		250
Loans, net		10,432,260		10,432,260		9,416,274		9,403,012
Financial liabilities:
Level 2 inputs:
Deposits	$	11,772,337	$	11,777,719	$	12,452,836	$	12,454,140
Federal funds purchased		1,389,167		1,389,167		1,711,777		1,711,777
Other borrowings		64,716		65,457		64,706		65,476