Annual report pursuant to Section 13 and 15(d)

INVESTMENT SECURITIES (Details)

v3.6.0.2
INVESTMENT SECURITIES (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Available-for-sale    
Amortized Cost $ 523,412 $ 450,883
Unrealized Gains 898 720
Unrealized Losses 1,576 575
Market Value 522,734 451,028
Held to Maturity    
Amortized Cost 177,365 187,892
Unrealized Gains 137 94
Unrealized Losses 756 579
Total    
Amortized Cost 700,777 638,775
Unrealized Gains 1,035 814
Unrealized Loss 2,332 1,154
Fair Value 699,480 638,435
U.S. Treasury [Member]    
Available-for-sale    
Amortized Cost 286,867 250,458
Unrealized Gains 262 101
Unrealized Losses 851 213
Market Value 286,278 250,346
U.S. Government Agency [Member]    
Available-for-sale    
Amortized Cost 131,489 101,730
Unrealized Gains 495 357
Unrealized Losses 344 263
Market Value 131,640 101,824
States and Political Subdivisions [Member]    
Available-for-sale    
Amortized Cost 95,197 88,358
Unrealized Gains 23 103
Unrealized Losses 381 99
Market Value 94,839 88,362
Mortgage-Backed Securities [Member]    
Available-for-sale    
Amortized Cost 1,312 1,742
Unrealized Gains 118 159
Unrealized Losses 0 0
Market Value 1,430 1,901
Equity Securities [Member]    
Available-for-sale    
Amortized Cost 8,547 8,595
Unrealized Gains 0 0
Unrealized Losses 0 0
Market Value 8,547 8,595
Federal Home Loan Bank 3,300 3,600
Federal Reserve Bank stock 4,800 4,800
FNBB, Inc. stock 500 200
U.S. Treasury [Member]    
Held to Maturity    
Amortized Cost 119,131 134,554
Unrealized Gains 107 45
Unrealized Losses 81 160
Investment Securities Held to Maturity 119,157 134,439
U.S. Government Agency [Member]    
Held to Maturity    
Amortized Cost 0 10,043
Unrealized Gains 0 7
Unrealized Losses 0 5
Investment Securities Held to Maturity 0 10,045
States and Political Subdivisions [Member]    
Held to Maturity    
Amortized Cost 8,175 15,693
Unrealized Gains 1 38
Unrealized Losses 38 7
Investment Securities Held to Maturity 8,138 15,724
Mortgage-Backed Securities [Member]    
Held to Maturity    
Amortized Cost 50,059 27,602
Unrealized Gains 29 4
Unrealized Losses 637 407
Investment Securities Held to Maturity $ 49,451 $ 27,199