XML 35 R81.htm IDEA: XBRL DOCUMENT v2.4.1.9
BORROWINGS Federal Home Loan Bank Advances (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Totals $ 354,874us-gaap_AdvancesFromFederalHomeLoanBanks $ 145,500us-gaap_AdvancesFromFederalHomeLoanBanks
Yadkin Financial Corporation and East Carolina Bancorp, Inc.    
Debt Instrument [Line Items]    
Liabilities, fair value adjustment 277us-gaap_LiabilitiesFairValueAdjustment
/ us-gaap_BusinessAcquisitionAxis
= crfn_YadkinFinancialCorporationandEastCarolinaBancorpInc.Member
299us-gaap_LiabilitiesFairValueAdjustment
/ us-gaap_BusinessAcquisitionAxis
= crfn_YadkinFinancialCorporationandEastCarolinaBancorpInc.Member
1/7/2014    
Debt Instrument [Line Items]    
Maturity Date Jan. 07, 2014  
Contractual Rate, maturities under one year (as a percent) 0.20%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate1Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate1Member
20,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate1Member
1/22/2014    
Debt Instrument [Line Items]    
Maturity Date Jan. 22, 2014  
Contractual Rate, maturities under one year (as a percent) 0.18%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate2Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate2Member
18,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate2Member
2/5/2014    
Debt Instrument [Line Items]    
Maturity Date Feb. 05, 2014  
Contractual Rate, maturities under one year (as a percent) 0.21%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate3Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate3Member
25,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate3Member
3/5/2014    
Debt Instrument [Line Items]    
Maturity Date Mar. 05, 2014  
Contractual Rate, maturities under one year (as a percent) 0.25%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate4Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate4Member
25,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate4Member
4/4/2014    
Debt Instrument [Line Items]    
Maturity Date Apr. 04, 2014  
Contractual Rate, maturities under one year (as a percent) 0.23%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate5Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate5Member
25,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate5Member
8/4/2014    
Debt Instrument [Line Items]    
Maturity Date Aug. 04, 2014  
Contractual Rate, maturities under one year (as a percent) 1.11%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate6Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate6Member
1,500us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate6Member
8/18/2014    
Debt Instrument [Line Items]    
Maturity Date Aug. 18, 2014  
Contractual Rate, maturities under one year (as a percent) 1.49%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate7Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate7Member
3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate7Member
8/20/2014    
Debt Instrument [Line Items]    
Maturity Date Aug. 20, 2014  
Contractual Rate, maturities under one year (as a percent) 1.48%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate8Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate8Member
3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate8Member
10/28/2014    
Debt Instrument [Line Items]    
Maturity Date Oct. 28, 2014  
Contractual Rate, maturities under one year (as a percent) 0.91%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate9Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate9Member
2,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate9Member
12/16/2014    
Debt Instrument [Line Items]    
Maturity Date Dec. 16, 2014  
Contractual Rate, maturities under one year (as a percent) 0.87%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate10Member
 
Maturities Summary, due in next twelve months 0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate10Member
4,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate10Member
1/2/2015    
Debt Instrument [Line Items]    
Maturity Date Jan. 02, 2015  
Contractual Rate, maturities under one year (as a percent) 0.25%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate11Member
 
Maturities Summary, due in next twelve months 20,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate11Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate11Member
1/5/2015    
Debt Instrument [Line Items]    
Maturity Date Jan. 05, 2015  
Contractual Rate, maturities under one year (as a percent) 0.20%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate13Member
 
Maturities Summary, due in next twelve months 25,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate13Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate13Member
1/12/2015    
Debt Instrument [Line Items]    
Maturity Date Jan. 12, 2015  
Contractual Rate, maturities under one year (as a percent) 2.99%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate14Member
 
Maturities Summary, due in next twelve months 5,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate14Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate14Member
2/5/2015    
Debt Instrument [Line Items]    
Maturity Date Feb. 05, 2015  
Contractual Rate, maturities under one year (as a percent) 0.22%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate15Member
 
Maturities Summary, due in next twelve months 25,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate15Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate15Member
2/26/2015    
Debt Instrument [Line Items]    
Maturity Date Feb. 26, 2015  
Contractual Rate, maturities under one year (as a percent) 0.428%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate16Member
 
Maturities Summary, due in next twelve months 3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate16Member
3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate16Member
3/2/2015    
Debt Instrument [Line Items]    
Maturity Date Mar. 02, 2015  
Contractual Rate, maturities under one year (as a percent) 0.244%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate17Member
 
Maturities Summary, due in next twelve months 15,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate17Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate17Member
3/5/2015    
Debt Instrument [Line Items]    
Maturity Date Mar. 05, 2015  
Contractual Rate, maturities under one year (as a percent) 0.24%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate18Member
 
Maturities Summary, due in next twelve months 25,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate18Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate18Member
4/27/2015    
Debt Instrument [Line Items]    
Maturity Date Apr. 27, 2015  
Contractual Rate, maturities under one year (as a percent) 2.97%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate19Member
 
Maturities Summary, due in next twelve months 5,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate19Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate19Member
4/30/2015    
Debt Instrument [Line Items]    
Maturity Date Apr. 30, 2015  
Contractual Rate, maturities under one year (as a percent) 0.28%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate20Member
 
Maturities Summary, due in next twelve months 25,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate20Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate20Member
6/26/2015    
Debt Instrument [Line Items]    
Maturity Date Jun. 26, 2015  
Contractual Rate, maturities under one year (as a percent) 0.26%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate21Member
 
Maturities Summary, due in next twelve months 10,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate21Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate21Member
7/15/2015    
Debt Instrument [Line Items]    
Maturity Date Jul. 15, 2015  
Contractual Rate, maturities under one year (as a percent) 0.305%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate22Member
 
Maturities Summary, due in next twelve months 20,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate22Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate22Member
8/5/2015    
Debt Instrument [Line Items]    
Maturity Date Aug. 05, 2015  
Contractual Rate, maturities under one year (as a percent) 0.309%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate23Member
 
Maturities Summary, due in next twelve months 15,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate23Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate23Member
8/5/2015    
Debt Instrument [Line Items]    
Maturity Date Aug. 05, 2015  
Contractual Rate, maturities under one year (as a percent) 0.301%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate24Member
 
Maturities Summary, due in next twelve months 10,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate24Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate24Member
8/17/2015    
Debt Instrument [Line Items]    
Maturity Date Aug. 17, 2015  
Contractual Rate, maturities under one year (as a percent) 1.85%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate25Member
 
Maturities Summary, due in next twelve months 4,500us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate25Member
4,500us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate25Member
8/20/2015    
Debt Instrument [Line Items]    
Maturity Date Aug. 20, 2015  
Contractual Rate, maturities under one year (as a percent) 1.83%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate26Member
 
Maturities Summary, due in next twelve months 3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate26Member
3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate26Member
10/1/2015    
Debt Instrument [Line Items]    
Maturity Date Oct. 01, 2015  
Contractual Rate, maturities under one year (as a percent) 0.35%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate27Member
 
Maturities Summary, due in next twelve months 10,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate27Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate27Member
11/16/2015    
Debt Instrument [Line Items]    
Maturity Date Nov. 16, 2015  
Contractual Rate, maturities under one year (as a percent) 0.41%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate28Member
 
Maturities Summary, due in next twelve months 10,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate28Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate28Member
12/1/2015    
Debt Instrument [Line Items]    
Maturity Date Dec. 01, 2015  
Contractual Rate, maturities under one year (as a percent) 0.428%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate29Member
 
Maturities Summary, due in next twelve months 20,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate29Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate29Member
1/4/2016    
Debt Instrument [Line Items]    
Maturity Date Jan. 04, 2016  
Contractual Rate, maturities under one year (as a percent) 0.503%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate30Member
 
Maturities Summary, due in next twelve months 15,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate30Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate30Member
2/5/2016    
Debt Instrument [Line Items]    
Maturity Date Feb. 05, 2016  
Contractual Rate, maturities under one year (as a percent) 0.569%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate31Member
 
Maturities Summary, due in next twelve months 25,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate31Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate31Member
2/16/2016    
Debt Instrument [Line Items]    
Maturity Date Feb. 16, 2016  
Contractual Rate, maturities under one year (as a percent) 0.48%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate32Member
 
Maturities Summary, due in next twelve months 10,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate32Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate32Member
2/26/2016    
Debt Instrument [Line Items]    
Maturity Date Feb. 26, 2016  
Contractual Rate, maturities under one year (as a percent) 0.611%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate33Member
 
Maturities Summary, due in next twelve months 3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate33Member
3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate33Member
4/1/2016    
Debt Instrument [Line Items]    
Maturity Date Apr. 01, 2016  
Contractual Rate, maturities under one year (as a percent) 0.513%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate34Member
 
Maturities Summary, due in next twelve months 15,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate34Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate34Member
7/1/2016    
Debt Instrument [Line Items]    
Maturity Date Jul. 01, 2016  
Contractual Rate, maturities under one year (as a percent) 0.70%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate35Member
 
Maturities Summary, due in next twelve months 20,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate35Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate35Member
8/17/2016    
Debt Instrument [Line Items]    
Maturity Date Aug. 17, 2016  
Contractual Rate, maturities under one year (as a percent) 2.21%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate36Member
 
Maturities Summary, due in next twelve months 2,500us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate36Member
2,500us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate36Member
2/27/2017    
Debt Instrument [Line Items]    
Maturity Date Feb. 27, 2017  
Contractual Rate, maturities under one year (as a percent) 0.817%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate37Member
 
Maturities Summary, due in next twelve months 3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate37Member
3,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate37Member
10/16/2017    
Debt Instrument [Line Items]    
Maturity Date Oct. 16, 2017  
Contractual Rate, maturities under one year (as a percent) 1.14%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate38Member
 
Maturities Summary, due in next twelve months 5,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate38Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate38Member
10/29/2018    
Debt Instrument [Line Items]    
Maturity Date Oct. 29, 2018  
Contractual Rate, maturities under one year (as a percent) 0.25%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate39Member
 
Maturities Summary, due in next twelve months 667us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate39Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate39Member
10/15/2019    
Debt Instrument [Line Items]    
Maturity Date Oct. 15, 2019  
Contractual Rate, maturities under one year (as a percent) 1.83%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate40Member
 
Maturities Summary, due in next twelve months 5,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate40Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate40Member
12/19/2023    
Debt Instrument [Line Items]    
Maturity Date Dec. 19, 2023  
Contractual Rate, maturities under one year (as a percent) 2.00%us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate41Member
 
Maturities Summary, due in next twelve months 207us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate41Member
0us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
/ crfn_MaturityDateAxis
= crfn_MaturityDate41Member
Line of Credit    
Debt Instrument [Line Items]    
Loans pledged as collateral 364,874us-gaap_LoansPledgedAsCollateral
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LineOfCreditMember
 
Line of Credit | Federal Home Loan Bank, Advances, Branch of FHLB Bank, Georgia    
Debt Instrument [Line Items]    
Line of credit, maximum borrowing capacity $ 159,752us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis
= crfn_FederalHomeLoanBankAdvancesBranchOfFhlbBankGeorgiaMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember