Acquisitions (Details 6) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012	Jun. 08, 2012 As Recorded By Carolina Federal [Member]	Jun. 08, 2012 Carolina Federal Fair Value Adjustments [Member]	Jun. 08, 2012 As Recorded By BNC Carolina Federal Acquisition [Member]
Business Acquisition [Line Items]
Cash and Due From Banks			$ 8,394	$ 0	$ 8,394
Federal Home Loan Bank Stock, at cost			112	0	112
Loans			32,328	(2,862)	29,466
Accrued Interest Receivable			124	0	124
Core Deposit Intangible			0	93	93
Other Assets			35	1,291	1,326
Assets Acquired			40,993	(1,478)	39,515
Deposits			(52,992)	(148)	(53,140)
Deferred Tax Liability			0	(2,981)	(2,981)
Other Liabilities			(42)	0	(42)
Total Liabilities Assumed			(53,034)	(3,129)	(56,163)
Excess of Liabilities Assumed Over Assets Acquired			(12,041)
Aggregate Fair Value Adjustments				(4,607)
Cash Received from the FDIC					21,400
Net Assets Acquired (Net After Tax Gain)					4,752
Income Tax Effect					2,982
Net Assets Acquired (Bargain Purchase Gain)	$ 719	$ 7,734			$ 7,734