<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Version>2.4.1.9</Version>
  <ProcessingTime />
  <ReportFormat>Html</ReportFormat>
  <ContextCount>771</ContextCount>
  <ElementCount>699</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>238</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>13</UnitCount>
  <MyReports>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001000 - Document - DOCUMENT AND ENTITY INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/DocumentAndEntityInformation</Role>
      <ShortName>DOCUMENT AND ENTITY INFORMATION</ShortName>
    </Report>
    <Report>
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>1001000 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>1002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ConsolidatedStatementsOfOperations</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>1003000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>1004000 - Statement - CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ConsolidatedStatementOfChangesInStockholdersEquity</Role>
      <ShortName>CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1005000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>2101100 - Disclosure - ORGANIZATION AND OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/OrganizationAndOperations</Role>
      <ShortName>ORGANIZATION AND OPERATIONS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>2102100 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/SummaryOfSignificantAccountingPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>2103100 - Disclosure - MERGERS AND ACQUISITIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/MergersAndAcquisitions</Role>
      <ShortName>MERGERS AND ACQUISITIONS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>2104100 - Disclosure - INVESTMENT SECURITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/InvestmentSecurities</Role>
      <ShortName>INVESTMENT SECURITIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>2105100 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLosses</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>2106100 - Disclosure - PREMISES AND EQUIPMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/PremisesAndEquipment</Role>
      <ShortName>PREMISES AND EQUIPMENT</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>2107100 - Disclosure - LOAN SERVICING</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoanServicing</Role>
      <ShortName>LOAN SERVICING</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>2108100 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/GoodwillAndOtherIntangibleAssets</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>2109100 - Disclosure - BORROWINGS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/Borrowings</Role>
      <ShortName>BORROWINGS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>2109100 - Disclosure - DEPOSITS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/Deposits</Role>
      <ShortName>DEPOSITS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>2110100 - Disclosure - LEASES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/Leases</Role>
      <ShortName>LEASES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>2111100 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/IncomeTaxes</Role>
      <ShortName>INCOME TAXES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>2112100 - Disclosure - REGULATORY MATTERS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/RegulatoryMatters</Role>
      <ShortName>REGULATORY MATTERS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>2113100 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/DerivativeFinancialInstruments</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>2114100 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/CommitmentsAndContingencies</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>2115100 - Disclosure - FAIR VALUE MEASUREMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/FairValueMeasurements</Role>
      <ShortName>FAIR VALUE MEASUREMENTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>2116100 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/EmployeeAndDirectorBenefitPlans</Role>
      <ShortName>EMPLOYEE AND DIRECTOR BENEFIT PLANS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>2117100 - Disclosure - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ChangesInAccumulatedOtherComprehensiveIncomeLoss</Role>
      <ShortName>CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>2118100 - Disclosure - PARENT COMPANY FINANCIAL DATA</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ParentCompanyFinancialData</Role>
      <ShortName>PARENT COMPANY FINANCIAL DATA</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>2202201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/SummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>2302302 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/SummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>2303301 - Disclosure - MERGERS AND ACQUISITIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/MergersAndAcquisitionsTables</Role>
      <ShortName>MERGERS AND ACQUISITIONS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>2304301 - Disclosure - INVESTMENT SECURITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/InvestmentSecuritiesTables</Role>
      <ShortName>INVESTMENT SECURITIES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>2305301 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesTables</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>2306301 - Disclosure - PREMISES AND EQUIPMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/PremisesAndEquipmentTables</Role>
      <ShortName>PREMISES AND EQUIPMENT (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>2307301 - Disclosure - LOAN SERVICING (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoanServicingTables</Role>
      <ShortName>LOAN SERVICING (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>2308301 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/GoodwillAndOtherIntangibleAssetsTables</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>2309301 - Disclosure - BORROWINGS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/BorrowingsTables</Role>
      <ShortName>BORROWINGS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>2309301 - Disclosure - DEPOSITS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/DepositsTables</Role>
      <ShortName>DEPOSITS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>2310301 - Disclosure - LEASES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LeasesTables</Role>
      <ShortName>LEASES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>2311301 - Disclosure - INCOME TAXES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/IncomeTaxesTables</Role>
      <ShortName>INCOME TAXES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>2312301 - Disclosure - REGULATORY MATTERS (Table)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/RegulatoryMattersTable</Role>
      <ShortName>REGULATORY MATTERS (Table)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>2313301 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/DerivativeFinancialInstrumentsTables</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>2314301 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/CommitmentsAndContingenciesTables</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>2315301 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/FairValueMeasurementsTables</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>2316301 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS (Table)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/EmployeeAndDirectorBenefitPlansTable</Role>
      <ShortName>EMPLOYEE AND DIRECTOR BENEFIT PLANS (Table)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>2317301 - Disclosure - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ChangesInAccumulatedOtherComprehensiveIncomeLossTables</Role>
      <ShortName>CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>2318301 - Disclosure - PARENT COMPANY FINANCIAL DATA (Table)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ParentCompanyFinancialDataTable</Role>
      <ShortName>PARENT COMPANY FINANCIAL DATA (Table)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>2401401 - Disclosure - ORGANIZATION AND OPERATIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/OrganizationAndOperationsDetails</Role>
      <ShortName>ORGANIZATION AND OPERATIONS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>2402403 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/SummaryOfSignificantAccountingPoliciesLoansDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Loans (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>2402404 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Premises and Equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/SummaryOfSignificantAccountingPoliciesPremisesAndEquipmentDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Premises and Equipment (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>2402405 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/SummaryOfSignificantAccountingPoliciesGoodwillDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Goodwill (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>2402406 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Per Share Results (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/SummaryOfSignificantAccountingPoliciesPerShareResultsDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Per Share Results (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>2402407 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Segment Reporting (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/SummaryOfSignificantAccountingPoliciesSegmentReportingDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- Segment Reporting (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>2403402 - Disclosure - MERGERS AND ACQUISITIONS (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/MergersAndAcquisitionsDetailsTextual</Role>
      <ShortName>MERGERS AND ACQUISITIONS (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>2403403 - Disclosure - MERGERS AND ACQUISITIONS - Shareholder Groups Immediately Prior to Mergers (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/MergersAndAcquisitionsShareholderGroupsImmediatelyPriorToMergersDetails</Role>
      <ShortName>MERGERS AND ACQUISITIONS - Shareholder Groups Immediately Prior to Mergers (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>2403404 - Disclosure - MERGERS AND ACQUISITIONS - Calculation of Purchase Price (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/MergersAndAcquisitionsCalculationOfPurchasePriceDetails</Role>
      <ShortName>MERGERS AND ACQUISITIONS - Calculation of Purchase Price (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>2403405 - Disclosure - MERGERS AND ACQUISITIOINS - Balance Sheet - Yadkin (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/MergersAndAcquisitioinsBalanceSheetYadkinDetails</Role>
      <ShortName>MERGERS AND ACQUISITIOINS - Balance Sheet - Yadkin (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>2403406 - Disclosure - MERGERS AND ACQUISITIONS - Balance Sheet - ECB Bancorp (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/MergersAndAcquisitionsBalanceSheetEcbBancorpDetails</Role>
      <ShortName>MERGERS AND ACQUISITIONS - Balance Sheet - ECB Bancorp (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>2403407 - Disclosure - MERGERS AND ACQUISITIONS - Pro Forma Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/MergersAndAcquisitionsProFormaInformationDetails</Role>
      <ShortName>MERGERS AND ACQUISITIONS - Pro Forma Information (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>2404402 - Disclosure - INVESTMENT SECURITIES - Summary of Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/InvestmentSecuritiesSummaryOfInvestmentsDetails</Role>
      <ShortName>INVESTMENT SECURITIES - Summary of Investments (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>2404403 - Disclosure - INVESTMENT SECURITIES - Continuous Unrealized Loss Position (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/InvestmentSecuritiesContinuousUnrealizedLossPositionDetails</Role>
      <ShortName>INVESTMENT SECURITIES - Continuous Unrealized Loss Position (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>2404404 - Disclosure - INVESTMENT SECURITIES - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/InvestmentSecuritiesNarrativeDetails</Role>
      <ShortName>INVESTMENT SECURITIES - Narrative (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>2404405 - Disclosure - INVESTMENT SECURITIES - Contractual Maturities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/InvestmentSecuritiesContractualMaturitiesDetails</Role>
      <ShortName>INVESTMENT SECURITIES - Contractual Maturities (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>2404406 - Disclosure - INVESTMENT SECURITIES - Securities Gains (Losses) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/InvestmentSecuritiesSecuritiesGainsLossesDetails</Role>
      <ShortName>INVESTMENT SECURITIES - Securities Gains (Losses) (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>2405402 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Summary of Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesSummaryOfLoansDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Summary of Loans (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>2405403 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES LOANS AND ALLOWANCE FOR LOAN LOSSES- Contractual Obligations Due From Directors, Executive Officers, and Their Interests (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesLoansAndAllowanceForLoanLossesContractualObligationsDueFromDirectorsExecutiveOfficersAndTheirInterestsDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES LOANS AND ALLOWANCE FOR LOAN LOSSES- Contractual Obligations Due From Directors, Executive Officers, and Their Interests (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>2405404 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Purchased Credit-Impaired Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesPurchasedCreditImpairedLoansDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Purchased Credit-Impaired Loans (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>2405405 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Accretable Yield, or Income Expected to be Collected, Related to PCI Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesAccretableYieldOrIncomeExpectedToBeCollectedRelatedToPciLoansDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Accretable Yield, or Income Expected to be Collected, Related to PCI Loans (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>2405406 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Contractual Payments, Fair Value, and Estimate of Cash Flows (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesContractualPaymentsFairValueAndEstimateOfCashFlowsDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Contractual Payments, Fair Value, and Estimate of Cash Flows (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>2405407 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Activity in Allowance for Loan Losses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesActivityInAllowanceForLoanLossesDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Activity in Allowance for Loan Losses (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>2405408 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Past Due Analysis and Aging (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesPastDueAnalysisAndAgingDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Past Due Analysis and Aging (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>2405409 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Non Accrual Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesNonAccrualLoansDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Non Accrual Loans (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>2405410 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Impaired Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesImpairedLoansDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Impaired Loans (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>2405411 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Impaired Loans Average Balance and Interest Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesImpairedLoansAverageBalanceAndInterestIncomeDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Impaired Loans Average Balance and Interest Income (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>2405412 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES- Troubled Debt Restructuring (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoansAndAllowanceForLoanLossesTroubledDebtRestructuringDetails</Role>
      <ShortName>LOANS AND ALLOWANCE FOR LOAN LOSSES- Troubled Debt Restructuring (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>2406402 - Disclosure - PREMISES AND EQUIPMENT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/PremisesAndEquipmentDetails</Role>
      <ShortName>PREMISES AND EQUIPMENT (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>2407402 - Disclosure - LOAN SERVICING - SBA Servicing Asset (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoanServicingSbaServicingAssetDetails</Role>
      <ShortName>LOAN SERVICING - SBA Servicing Asset (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>2407403 - Disclosure - LOAN SERVICING - Characteristics and Sensitivity of the Fair Value of MSRs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LoanServicingCharacteristicsAndSensitivityOfFairValueOfMsrsDetails</Role>
      <ShortName>LOAN SERVICING - Characteristics and Sensitivity of the Fair Value of MSRs (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>2408402 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Carrying Amounts of Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/GoodwillAndOtherIntangibleAssetsCarryingAmountsOfIntangibleAssetsDetails</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS - Carrying Amounts of Intangible Assets (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>2408403 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Estimated Amortization Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/GoodwillAndOtherIntangibleAssetsEstimatedAmortizationExpenseDetails</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS - Estimated Amortization Expense (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>2409402 - Disclosure - BORROWINGS Short-Term and Long-Term Borrowings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/BorrowingsShortTermAndLongTermBorrowingsDetails</Role>
      <ShortName>BORROWINGS Short-Term and Long-Term Borrowings (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>2409402 - Disclosure - DEPOSITS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/DepositsDetails</Role>
      <ShortName>DEPOSITS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>2409403 - Disclosure - BORROWINGS Federal Home Loan Bank Advances (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/BorrowingsFederalHomeLoanBankAdvancesDetails</Role>
      <ShortName>BORROWINGS Federal Home Loan Bank Advances (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>2409404 - Disclosure - BORROWINGS Subordinated Term Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/BorrowingsSubordinatedTermLoansDetails</Role>
      <ShortName>BORROWINGS Subordinated Term Loans (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>2409405 - Disclosure - BORROWINGS Subordinated Notes (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.crescentstatebank.com/role/BorrowingsSubordinatedNotesDetails</Role>
      <ShortName>BORROWINGS Subordinated Notes (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>2409406 - Disclosure - BORROWINGS Junior Subordinated Debentures (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/BorrowingsJuniorSubordinatedDebenturesDetails</Role>
      <ShortName>BORROWINGS Junior Subordinated Debentures (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>2410402 - Disclosure - LEASES - Future Minimum Lease Payments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LeasesFutureMinimumLeasePaymentsDetails</Role>
      <ShortName>LEASES - Future Minimum Lease Payments (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>2410403 - Disclosure - LEASES - Additional Disclosures (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/LeasesAdditionalDisclosuresDetails</Role>
      <ShortName>LEASES - Additional Disclosures (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>2411402 - Disclosure - INCOME TAXES - Significant Components of the Provision for Income Taxes ( (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/IncomeTaxesSignificantComponentsOfProvisionForIncomeTaxesDetails</Role>
      <ShortName>INCOME TAXES - Significant Components of the Provision for Income Taxes ( (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>2411403 - Disclosure - INCOME TAXES - Income Tax Rate Reconciliation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/IncomeTaxesIncomeTaxRateReconciliationDetails</Role>
      <ShortName>INCOME TAXES - Income Tax Rate Reconciliation (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>2411404 - Disclosure - INCOME TAXES - Significant Components of Deferred Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/IncomeTaxesSignificantComponentsOfDeferredTaxesDetails</Role>
      <ShortName>INCOME TAXES - Significant Components of Deferred Taxes (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>2411405 - Disclosure - INCOME TAXES - Net Operating Losses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/IncomeTaxesNetOperatingLossesDetails</Role>
      <ShortName>INCOME TAXES - Net Operating Losses (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>2412402 - Disclosure - REGULATORY MATTERS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/RegulatoryMattersDetails</Role>
      <ShortName>REGULATORY MATTERS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>2413402 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Terms of Interest Swaps and Caps (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/DerivativeFinancialInstrumentsTermsOfInterestSwapsAndCapsDetails</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS - Terms of Interest Swaps and Caps (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>2413403 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Balance Sheet Location and Fair Value of Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/DerivativeFinancialInstrumentsBalanceSheetLocationAndFairValueOfInstrumentsDetails</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS - Balance Sheet Location and Fair Value of Instruments (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>2414402 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/CommitmentsAndContingenciesDetails</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>2415402 - Disclosure - FAIR VALUE MEASUREMENTS- Change in Fair Value of Available for Sale Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/FairValueMeasurementsChangeInFairValueOfAvailableForSaleSecuritiesDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS- Change in Fair Value of Available for Sale Securities (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>2415403 - Disclosure - FAIR VALUE MEASUREMENTS- Change in Fair Value of Interest Rate Commitments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/FairValueMeasurementsChangeInFairValueOfInterestRateCommitmentsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS- Change in Fair Value of Interest Rate Commitments (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>2415404 - Disclosure - FAIR VALUE MEASUREMENTS- Assets and Liabilities on Recurring and Nonrecurring Basis and Level 3 Valuation Measurements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/FairValueMeasurementsAssetsAndLiabilitiesOnRecurringAndNonrecurringBasisAndLevel3ValuationMeasurementsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS- Assets and Liabilities on Recurring and Nonrecurring Basis and Level 3 Valuation Measurements (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>2415405 - Disclosure - FAIR VALUE MEASUREMENTS- Carrying Amounts and Fair Values of Financial Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfFinancialInstrumentsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS- Carrying Amounts and Fair Values of Financial Instruments (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>2416402 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS- Plan Details (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/EmployeeAndDirectorBenefitPlansPlanDetailsDetails</Role>
      <ShortName>EMPLOYEE AND DIRECTOR BENEFIT PLANS- Plan Details (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>2416403 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS- Summary of the Company’s Option Plans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/EmployeeAndDirectorBenefitPlansSummaryOfCompanysOptionPlansDetails</Role>
      <ShortName>EMPLOYEE AND DIRECTOR BENEFIT PLANS- Summary of the Company’s Option Plans (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>2416404 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS- Range of Exercise Prices for Options Outstanding and Exercisable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/EmployeeAndDirectorBenefitPlansRangeOfExercisePricesForOptionsOutstandingAndExercisableDetails</Role>
      <ShortName>EMPLOYEE AND DIRECTOR BENEFIT PLANS- Range of Exercise Prices for Options Outstanding and Exercisable (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>2416405 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS- Restricted Stock Award Plans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/EmployeeAndDirectorBenefitPlansRestrictedStockAwardPlansDetails</Role>
      <ShortName>EMPLOYEE AND DIRECTOR BENEFIT PLANS- Restricted Stock Award Plans (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>2416406 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS- Defined Contribution Plan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/EmployeeAndDirectorBenefitPlansDefinedContributionPlanDetails</Role>
      <ShortName>EMPLOYEE AND DIRECTOR BENEFIT PLANS- Defined Contribution Plan (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>2416407 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS- Piedmont Stock Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/EmployeeAndDirectorBenefitPlansPiedmontStockWarrantsDetails</Role>
      <ShortName>EMPLOYEE AND DIRECTOR BENEFIT PLANS- Piedmont Stock Warrants (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>2417402 - Disclosure - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Components of AOCI (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ChangesInAccumulatedOtherComprehensiveIncomeLossComponentsOfAociDetails</Role>
      <ShortName>CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Components of AOCI (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>2417403 - Disclosure - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Reclassifications out of AOCI (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ChangesInAccumulatedOtherComprehensiveIncomeLossReclassificationsOutOfAociDetails</Role>
      <ShortName>CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Reclassifications out of AOCI (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>2418402 - Disclosure - PARENT COMPANY FINANCIAL DATA Condensed Balance Sheets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ParentCompanyFinancialDataCondensedBalanceSheetsDetails</Role>
      <ShortName>PARENT COMPANY FINANCIAL DATA Condensed Balance Sheets (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>2418403 - Disclosure - PARENT COMPANY FINANCIAL DATA Condensed Statements of Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ParentCompanyFinancialDataCondensedStatementsOfOperationsDetails</Role>
      <ShortName>PARENT COMPANY FINANCIAL DATA Condensed Statements of Operations (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>2418404 - Disclosure - PARENT COMPANY FINANCIAL DATA Condensed Statements of Cash Flows (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.crescentstatebank.com/role/ParentCompanyFinancialDataCondensedStatementsOfCashFlowsDetails</Role>
      <ShortName>PARENT COMPANY FINANCIAL DATA Condensed Statements of Cash Flows (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Info">Element crfn_BusinessCombinationConversionofStockConversionRatio had a mix of decimals attribute values: 0 5.</Log>
    <Log type="Info">Element crfn_ServicingAssetsandServicingLiabilitiesPercentageofTotal had a mix of decimals attribute values: 0 4.</Log>
    <Log type="Info">Element us-gaap_AllocatedShareBasedCompensationExpense had a mix of decimals attribute values: -3 0.</Log>
    <Log type="Info">Element us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage had a mix of decimals attribute values: 0 3.</Log>
    <Log type="Info">Element us-gaap_CommonStockSharesIssued had a mix of decimals attribute values: -5 0.</Log>
    <Log type="Info">Element us-gaap_DerivativeFixedInterestRate had a mix of decimals attribute values: 0 4.</Log>
    <Log type="Info">Element us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions had a mix of decimals attribute values: -3 0.</Log>
    <Log type="Info">Element us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest had a mix of decimals attribute values: -3 0.</Log>
    <Log type="Info">'Monetary' elements on report '2403405 - Disclosure - MERGERS AND ACQUISITIOINS - Balance Sheet - Yadkin (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '2405403 - Disclosure - LOANS AND ALLOWANCE FOR LOAN LOSSES LOANS AND ALLOWANCE FOR LOAN LOSSES- Contractual Obligations Due From Directors, Executive Officers, and Their Interests (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '2407402 - Disclosure - LOAN SERVICING - SBA Servicing Asset (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '2408402 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Carrying Amounts of Intangible Assets (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '2408403 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Estimated Amortization Expense (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '2409402 - Disclosure - BORROWINGS Short-Term and Long-Term Borrowings (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '2416405 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS- Restricted Stock Award Plans (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">'Monetary' elements on report '2416407 - Disclosure - EMPLOYEE AND DIRECTOR BENEFIT PLANS- Piedmont Stock Warrants (Details)' had a mix of different decimal attribute values.</Log>
    <Log type="Info">Process Flow-Through: 1001000 - Statement - CONSOLIDATED BALANCE SHEETS</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2011'</Log>
    <Log type="Info">Process Flow-Through: 1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</Log>
    <Log type="Info">Process Flow-Through: 1002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</Log>
    <Log type="Info">Process Flow-Through: 1003000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)</Log>
    <Log type="Info">Process Flow-Through: 1005000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</Log>
  </Logs>
  <InputFiles>
    <File>crfn-20141231.xml</File>
    <File>crfn-20141231.xsd</File>
    <File>crfn-20141231_cal.xml</File>
    <File>crfn-20141231_def.xml</File>
    <File>crfn-20141231_lab.xml</File>
    <File>crfn-20141231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
