FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK AND DERIVATIVES (Company's Interest Rate Swaps) (Detail) - Swap - Commercial Loan [Member] - Not Designated as Hedging Instrument [Member] - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Notional Amount	$ 17.7	$ 17.8
Estimated Fair Value	$ 0.6	$ 0.7

FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK AND DERIVATIVES (Company's Interest Rate Swaps) (Detail) - Swap - Commercial Loan [Member] - Not Designated as Hedging Instrument [Member] - USD ($)
$ in Millions

Mar. 31, 2018

Dec. 31, 2017

Notional Amount

$ 17.7

$ 17.8

Estimated Fair Value

$ 0.6

$ 0.7