Annual report pursuant to Section 13 and 15(d)

INVESTMENT SECURITIES (Details)

v3.8.0.1
INVESTMENT SECURITIES (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Available-for-sale    
Amortized Cost $ 483,048 $ 523,412
Unrealized Gains 812 898
Unrealized Losses 2,949 1,576
Market Value 480,911 522,734
Held to Maturity    
Amortized Cost 216,679 177,365
Unrealized Gains 22 137
Unrealized Losses 1,694 756
Market Value 215,007 176,746
Total    
Amortized Cost 699,727 700,777
Unrealized Gains 834 1,035
Unrealized Loss 4,643 2,332
Fair Value 695,918 699,480
U.S. Treasury [Member]    
Available-for-sale    
Amortized Cost 237,505 286,867
Unrealized Gains 0 262
Unrealized Losses 2,164 851
Market Value 235,341 286,278
U.S. Government Agency [Member]    
Available-for-sale    
Amortized Cost 144,324 131,489
Unrealized Gains 727 495
Unrealized Losses 407 344
Market Value 144,644 131,640
States and Political Subdivisions [Member]    
Available-for-sale    
Amortized Cost 91,533 95,197
Unrealized Gains 2 23
Unrealized Losses 378 381
Market Value 91,157 94,839
Mortgage-Backed Securities [Member]    
Available-for-sale    
Amortized Cost 1,102 1,312
Unrealized Gains 83 118
Unrealized Losses 0 0
Market Value 1,185 1,430
Equity Securities [Member]    
Available-for-sale    
Amortized Cost 8,584 8,547
Unrealized Gains 0 0
Unrealized Losses 0 0
Market Value 8,584 8,547
Federal Home Loan Bank 3,100 3,300
Federal Reserve Bank stock 4,800 4,800
FNBB, Inc. stock 800 500
U.S. Treasury [Member]    
Held to Maturity    
Amortized Cost 98,256 119,131
Unrealized Gains 0 107
Unrealized Losses 441 81
Market Value 97,815 119,157
U.S. Government Agency [Member]    
Held to Maturity    
Amortized Cost 0 0
Unrealized Gains 0 0
Unrealized Losses 0 0
Market Value 0 0
States and Political Subdivisions [Member]    
Held to Maturity    
Amortized Cost 6,996 8,175
Unrealized Gains 0 1
Unrealized Losses 41 38
Market Value 6,955 8,138
Mortgage-Backed Securities [Member]    
Held to Maturity    
Amortized Cost 111,427 50,059
Unrealized Gains 22 29
Unrealized Losses 1,212 637
Market Value $ 110,237 $ 49,451