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FAIR VALUE DISCLOSURES (Quantitative Information about Level 3 Fair Value Measurements) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Valuation Technique   Collateral based measurements
Fair Value, Inputs, Level 3 [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Range of Inputs (Average) (in hundredths)   0.17%
State and Municipal Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Total assets $ 150 $ 150
Valuation Technique Price to type, par, call Price to type, par, call
State and Municipal Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Discount To Benchmark Index [Member] | Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Range of Inputs (Average) (in hundredths) 0.00% 0.00%
State and Municipal Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Discount To Benchmark Index [Member] | Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Range of Inputs (Average) (in hundredths) 1.00% 1.00%