MERGERS AND ACQUISITIONS AND BRANCH CONSOLIDATIONS - Schedule of Fair Value Adjustments Made to the Amortized Cost Basis of Loans (Details) - Hamilton Bancorp, Inc. $ in Thousands	May 01, 2019 USD ($)
Business Acquisition [Line Items]
Gross amortized cost basis at acquisition	$ 362,125
Market rate adjustment	(5,309)
Credit fair value adjustment on non-credit impaired loans	(3,947)
Credit fair value adjustment on impaired loans	(5,508)
Estimated fair value of acquired loans	$ 347,361