ACQUISITION (Details) $ in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2018 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Assets	$ 1,636,927		$ 1,636,927	$ 1,295,638
Interest-bearing deposits	1,730		1,730	4,227
Liabilities	1,417,942		1,417,942	1,145,367
Deposits	1,300,919		1,300,919	1,085,821
Goodwill	59,221		59,221	$ 30,183	$ 30,183
Columbus First Bancorp, Inc.
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Less common stock issued	$ 63,598	$ 63,598	63,598
Payments to Acquire Businesses, Gross		783	$ 783
Exchange ratio per share	2		2
Business combination consideration transferred		64,381	$ 64,381
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ 13,679	13,679	13,679
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Assets	10,350	10,350	10,350
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Federal Home Loan Bank Stock	1,207	1,207	1,207
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	102	102	102
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	2,177	2,089	2,177
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Real Estate Owned	35	35	35
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets	352	0	352
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	1,364	2,022	1,364
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	313,218	314,051	313,218
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Liabilities	244,430	245,036	244,430
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Short-term Borrowings	10,000	10,000	10,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	22,943	22,920	22,943
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	0	200	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	502	491	502
Liabilities assumed	277,875	278,647	277,875
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	35,343	35,404	35,343
Goodwill	29,038	28,977	29,038
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Equity Interests	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Payments To Acquire Business, Gross	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash and Equivalents	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Federal Home Loan Bank Stock	0
Business Combination, Acquired Receivable, Fair Value	282,133	282,748	282,133
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Loans Receivable	(615)
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Loan Receivables Held For Sale	1,819	$ 1,819	$ 1,819
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Loan Receivables Held For Sale	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles	88
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Real Estate Owned	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Assets	352
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Noncurrent Assets	(658)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assumed Assets	(833)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities	(606)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current Liabilities, Short-Term Borrowings	0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current Liabilities, Long-Term Debt	23
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Liabilities	(200)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities, Other	11
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assumed Liabilities	(772)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Recognized Identifiable Assets Acquired And Liabilities Assumed, Net	(61)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Goodwill	$ 61