Borrowings, Long-term Debt Instruments (Details) (USD $)	12 Months Ended
	Dec. 31, 2014 Loan	Dec. 31, 2013 Loan	Dec. 31, 2012
Long-Term Borrowings [Abstract]
Long-term FHLB advance	$ 1,253,000	$ 8,458,000
Subordinated notes	49,936,000	49,904,000
Federal Home Loan Bank Advances [Member] | Fair Market Value Adjustment [Member]
Long-Term Borrowings [Abstract]
Long-term FHLB advance	7,000	412,000
Federal Home Loan Bank Advances [Member] | Atlanta [Member]
Long-Term Borrowings [Abstract]
Number of outstanding long-term FHLB advances	4	6
Long-term FHLB advance	1,200,000	8,500,000
Weighted average remaining maturity	7 years 1 month 17 days	2 years 10 months 6 days
Weighted average cost related to FHLB advances (in hundredths)	1.11%	3.55%
Interest expense, long-term	45,000	57,000	0
Federal Home Loan Bank Advances [Member] | Atlanta [Member] | Minimum [Member]
Long-Term Borrowings [Abstract]
Long-term FHLB advance	23,000	30,000
Interest rate (in hundredths)	0.08%	0.08%
Federal Home Loan Bank Advances [Member] | Atlanta [Member] | Maximum [Member]
Long-Term Borrowings [Abstract]
Long-term FHLB advance	913,000	6,500,000
Interest rate (in hundredths)	6.50%	6.95%
Subordinated Notes Payable [Member]
Long-Term Borrowings [Abstract]
Interest rate (in hundredths)	5.673%
Face amount of debt issued	50,000,000
Maturity date	Dec. 15, 2016
Subordinated notes	$ 49,900,000	$ 49,900,000
Percentage of debt qualify as Tier 2 Capital (in hundredths)	20.00%
Subordinated Notes Payable [Member] | Minimum [Member]
Long-Term Borrowings [Abstract]
Maturity period	1 year
Subordinated Notes Payable [Member] | Maximum [Member]
Long-Term Borrowings [Abstract]
Maturity period	2 years