MERGERS AND ACQUISITIONS AND BRANCH CONSOLIDATIONS - Schedule of Loans Acquired in Business Combination (Details) - Hamilton Bancorp, Inc. $ in Thousands	May 01, 2019 USD ($)
Business Acquisition [Line Items]
Performing loans	$ 327,875
PCI Loans	19,486
Total loans	347,361
Commercial Real Estate | Owner-occupied
Business Acquisition [Line Items]
Performing loans	42,148
PCI Loans	6,324
Total loans	48,472
Commercial Real Estate | Non-owner occupied
Business Acquisition [Line Items]
Performing loans	45,401
PCI Loans	770
Total loans	46,171
Commercial Real Estate | Multi-family
Business Acquisition [Line Items]
Performing loans	10,773
PCI Loans	0
Total loans	10,773
Acquisition and development | 1-4 family residential construction
Business Acquisition [Line Items]
Performing loans	7,450
PCI Loans	0
Total loans	7,450
Acquisition and development | Commercial and land development
Business Acquisition [Line Items]
Performing loans	4,528
PCI Loans	0
Total loans	4,528
Commercial and industrial
Business Acquisition [Line Items]
Performing loans	32,316
PCI Loans	1,702
Total loans	34,018
Residential mortgage | First lien
Business Acquisition [Line Items]
Performing loans	152,657
PCI Loans	10,494
Total loans	163,151
Residential mortgage | Home equity – term
Business Acquisition [Line Items]
Performing loans	4,478
PCI Loans	1
Total loans	4,479
Residential mortgage | Home equity lines of credit
Business Acquisition [Line Items]
Performing loans	13,657
PCI Loans	0
Total loans	13,657
Installment and other loans
Business Acquisition [Line Items]
Performing loans	14,467
PCI Loans	195
Total loans	$ 14,662