FAIR VALUE DISCLOSURES (Assets and Liabilities Measured At Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets
Mortgage-backed securities	$ 371,349
Total Securities	560,664	$ 538,493
Mortgage banking derivative	3,540	2,441
Liabilities
Mortgage banking derivative	3,330	1,812
Fair Value, Measurements, Recurring [Member]
Assets
U.S. Treasury securities	984	997
U.S. government sponsored agency securities	4,990	5,122
Mortgage-backed securities	371,349	357,985
State and municipal securities	183,341	174,389
Total Securities	560,664	538,493
Mortgage banking derivative	165	136
Interest rate swap derivative	3,540	2,441
Total assets	564,369	541,070
Liabilities
Mortgage banking derivative	9	3
Interest rate swap derivative	3,580	2,562
Total liabilities	3,589	2,565
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets
U.S. Treasury securities	984	997
U.S. government sponsored agency securities	0	0
Mortgage-backed securities	0	0
State and municipal securities	0	0
Total Securities	984	997
Mortgage banking derivative	0	0
Interest rate swap derivative	0	0
Total assets	984	997
Liabilities
Mortgage banking derivative	0	0
Interest rate swap derivative	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets
U.S. Treasury securities	0	0
U.S. government sponsored agency securities	4,990	5,122
Mortgage-backed securities	371,349	357,985
State and municipal securities	182,510	173,509
Total Securities	558,849	536,616
Mortgage banking derivative	165	136
Interest rate swap derivative	3,540	2,441
Total assets	562,554	539,193
Liabilities
Mortgage banking derivative	9	3
Interest rate swap derivative	3,580	2,562
Total liabilities	3,589	2,565
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets
U.S. Treasury securities	0	0
U.S. government sponsored agency securities	0	0
Mortgage-backed securities	0	0
State and municipal securities	831	880
Total Securities	831	880
Mortgage banking derivative	0	0
Interest rate swap derivative	0	0
Total assets	831	880
Liabilities
Mortgage banking derivative	0	0
Interest rate swap derivative	0	0
Total liabilities	$ 0	$ 0