Annual report pursuant to Section 13 and 15(d)

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

v3.10.0.1
Note 2 - Debt Securities - Investment Securities Continuous Unrealized Loss Position (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Less Than Twelve Months, Gross Unrealized Losses $ (963) $ (1,622)
Less Than Twelve Months, Fair Value 125,788 247,425
Twelve Months or More, Gross Unrealized Losses (6,623) (1,900)
Twelve Months or More, Fair Value 320,802 85,477
Total, Gross Unrealized Losses (7,586) (3,522)
Total, Fair Value 446,590 332,902
US Treasury and Government [Member]    
Less Than Twelve Months, Gross Unrealized Losses (8) (151)
Less Than Twelve Months, Fair Value 1,001 33,401
Twelve Months or More, Gross Unrealized Losses (611) (98)
Twelve Months or More, Fair Value 50,878 2,926
Total, Gross Unrealized Losses (619) (249)
Total, Fair Value 51,879 36,327
Collateralized Mortgage Backed Securities [Member]    
Less Than Twelve Months, Gross Unrealized Losses (539) (986)
Less Than Twelve Months, Fair Value 67,721 140,432
Twelve Months or More, Gross Unrealized Losses (4,992) (1,699)
Twelve Months or More, Fair Value 204,260 75,903
Total, Gross Unrealized Losses (5,531) (2,685)
Total, Fair Value 271,981 216,335
US States and Political Subdivisions Debt Securities [Member]    
Less Than Twelve Months, Gross Unrealized Losses (101) (450)
Less Than Twelve Months, Fair Value 20,821 66,637
Twelve Months or More, Gross Unrealized Losses (578) (103)
Twelve Months or More, Fair Value 52,190 6,648
Total, Gross Unrealized Losses (679) (553)
Total, Fair Value 73,011 73,285
Corporate Debt Securities [Member]    
Less Than Twelve Months, Gross Unrealized Losses (315) (35)
Less Than Twelve Months, Fair Value 36,245 6,955
Twelve Months or More, Gross Unrealized Losses (442)
Twelve Months or More, Fair Value 13,474
Total, Gross Unrealized Losses (757) (35)
Total, Fair Value $ 49,719 $ 6,955