Annual report pursuant to Section 13 and 15(d)

Note 2 - Debt Securities - Investment Securities Continuous Unrealized Loss Position (Details)

v3.22.0.1
Note 2 - Debt Securities - Investment Securities Continuous Unrealized Loss Position (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Less Than Twelve Months, Gross Unrealized Losses $ (5,342) $ (522)
Less Than Twelve Months, Fair Value 628,544 63,243
Twelve Months or More, Gross Unrealized Losses (9) 0
Twelve Months or More, Fair Value 228 0
Total, Gross Unrealized Losses (5,351) (522)
Total, Fair Value 628,772 63,243
US Treasury Securities [Member]    
Less Than Twelve Months, Gross Unrealized Losses (668) 0
Less Than Twelve Months, Fair Value 123,698 0
Twelve Months or More, Gross Unrealized Losses 0 0
Twelve Months or More, Fair Value 0 0
Total, Gross Unrealized Losses (668) 0
Total, Fair Value 123,698 0
US Government Agencies Debt Securities [Member]    
Less Than Twelve Months, Gross Unrealized Losses 0 0
Less Than Twelve Months, Fair Value 0 0
Twelve Months or More, Gross Unrealized Losses 0 0
Twelve Months or More, Fair Value 0 0
Total, Gross Unrealized Losses 0 0
Total, Fair Value 0 0
Collateralized Mortgage Backed Securities [Member]    
Less Than Twelve Months, Gross Unrealized Losses (3,956) (18)
Less Than Twelve Months, Fair Value 437,489 3,667
Twelve Months or More, Gross Unrealized Losses 0 0
Twelve Months or More, Fair Value 0 0
Total, Gross Unrealized Losses (3,956) (18)
Total, Fair Value 437,489 3,667
US States and Political Subdivisions Debt Securities [Member]    
Less Than Twelve Months, Gross Unrealized Losses (71) 0
Less Than Twelve Months, Fair Value 5,680 0
Twelve Months or More, Gross Unrealized Losses (9) 0
Twelve Months or More, Fair Value 228 0
Total, Gross Unrealized Losses (80) 0
Total, Fair Value 5,908 0
Corporate Debt Securities [Member]    
Less Than Twelve Months, Gross Unrealized Losses (647) (504)
Less Than Twelve Months, Fair Value 61,677 59,576
Twelve Months or More, Gross Unrealized Losses 0 0
Twelve Months or More, Fair Value 0 0
Total, Gross Unrealized Losses (647) (504)
Total, Fair Value $ 61,677 $ 59,576