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	19,268
Total loans	347,143
Commercial Real Estate | Owner-occupied
Business Acquisition [Line Items]
Performing loans	42,148
PCI loans	5,894
Total loans	48,042
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	1,914
Total loans	34,230
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