SECURITIES (Securities Pledged) (Details) $ in Thousands	Jun. 30, 2018 USD ($)
Pledged Financial Instruments, Not Separately Reported, Securities [Abstract]
Securities pledged for State and Local Government Public Deposits, Carrying Value	$ 128,867
Securities pledged for Interest Rate Swap Counterparties, Carrying Value	14,535
Securities pledged for Repurchase Agreements, Carrying Value	123,817
Pledged Financial Instruments, Not Separately Reported, Interest-bearing Deposits for Other Debt Facilities	3,876
Total pledged securities, Carrying Value	271,095
Securities pledged for State and Local Government public deposits, Amortized Cost	128,919
Securities pledged for Interest Rate Swap Counterparties, Amortized Cost	14,719
Securities pledged for Repurchase Agreements, Amortized Cost	126,129
Pledged Financial Instruments, Not Separately Reported, Interest-bearing Deposits for Other Debt Facilities, Amortized Cost	3,876
Total pledged securities, Amortized Cost	273,643
Securities pledged for State and Local Government Public Deposits, Fair Value	129,642
Securities pledged for Interest Rate Swap Counterparties, Fair Value	14,312
Securities pledged for Retail Repurchase Agreements, Fair Value	123,817
Pledged Financial Instruments, Not Separately Reported, Interest-bearing Deposits for Other Debt Facilities, Fair Value	3,701
Total pledged securities, Fair Value	$ 271,472