Number of shares of equity interests issued or issuable to acquire entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Fair value at acquisition-date of the assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interests issued by the acquirer, including but not limited to, instruments or interests issued or issuable in consideration for the business combination.

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Amount of assets acquired at the acquisition date.

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Fair value at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

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Exercise price per share or per unit of warrants or rights outstanding.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Number of new stock issued during the period.

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BUSINESS COMBINATIONS - Additional information (Details) - USD ($)			12 Months Ended
	Aug. 27, 2018	Dec. 15, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value		$ 8,592,000	$ 15,713,000	$ 19,268,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares			1.0463	948,080
Business Acquisition, Share Price		$ 12.14
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total		$ 279,142,000	$ 26,258,000	$ 0	$ 279,142,000
Payments to Acquire Businesses, Gross				$ 11,993,212
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 12.65	$ 12.65	$ 12.65
Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination			$ 2,231,728
Stock Issued During Period, Shares, New Issues	5,270,834
Business Combination, Consideration Transferred				$ 40,600,000
Carolina Premier [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total		$ 279,600,000
Common Stock
Business Acquisition [Line Items]
Stock Issued During Period, Shares, New Issues			2,334,999
Common Stock \| Premara Financial, Inc [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		3,179,808		3,179,808
Business Acquisition, Percentage of Voting Interests Acquired				30.00%
Legacy Select [Member]
Business Acquisition [Line Items]
Business Combination, Acquisition Related Costs			$ 406,000	$ 1,800,000	$ 2,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total		$ 279,594,000
Purchased Credit Impaired Loans [Member]
Business Acquisition [Line Items]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			8,600,000
Performing Loans [Member]
Business Acquisition [Line Items]
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value			$ 189,600,000