Securities (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012
Amortized cost	$ 3,998
Market value	3,813
First Citizens Bancorp (South Carolina) Bond
S&P issuer ratings	Not Rated
Maturity date	Apr. 01, 2015
Amortized cost	2,998
Market value	3,073
First Citizens Bancorp (South Carolina) Trust Preferred Security
S&P issuer ratings	Not Rated
Maturity date	Jun. 15, 2034
Amortized cost	1,000
Market value	$ 740

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

No definition available.

Name:	us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant