INVESTMENT SECURITIES - Amortized Cost and Fair Values of Investment Securities (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Available for sale (AFS)    
Amortized Cost $ 134,460 $ 175,766
Gross Unrealized Gains 1,954 3,436
Gross Unrealized Losses (2,922) (3,045)
Fair Value 133,492 176,157
U.S. Government and agency securities    
Available for sale (AFS)    
Amortized Cost 0 3,586
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 (37)
Fair Value 0 3,549
Mortgage-backed securities    
Available for sale (AFS)    
Amortized Cost 9,295 9,785
Gross Unrealized Gains 182 284
Gross Unrealized Losses (164) (60)
Fair Value 9,313 10,009
Asset-backed securities    
Available for sale (AFS)    
Amortized Cost 109 1,960
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 (20)
Fair Value 109 1,940
State and political securities    
Available for sale (AFS)    
Amortized Cost 60,777 84,992
Gross Unrealized Gains 666 1,797
Gross Unrealized Losses (509) (234)
Fair Value 60,934 86,555
Other debt securities    
Available for sale (AFS)    
Amortized Cost 53,046 59,832
Gross Unrealized Gains 137 185
Gross Unrealized Losses (2,065) (2,245)
Fair Value 51,118 57,772
Total debt securities    
Available for sale (AFS)    
Amortized Cost 123,227 160,155
Gross Unrealized Gains 985 2,266
Gross Unrealized Losses (2,738) (2,596)
Fair Value 121,474 159,825
Financial institution equity securities    
Available for sale (AFS)    
Amortized Cost 9,566 10,397
Gross Unrealized Gains 969 1,100
Gross Unrealized Losses 0 (14)
Fair Value 10,535 11,483
Other equity securities    
Available for sale (AFS)    
Amortized Cost 1,667 5,214
Gross Unrealized Gains 0 70
Gross Unrealized Losses (184) (435)
Fair Value 1,483 4,849
Total equity securities    
Available for sale (AFS)    
Amortized Cost 11,233 15,611
Gross Unrealized Gains 969 1,170
Gross Unrealized Losses (184) (449)
Fair Value $ 12,018 $ 16,332