Loans, Net Recorded investment in nonaccrual loans and loans past due and still accruing by class of loans (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$ 9,944	$ 19,752
Past due 90 days or more and still accruing	30	808
Real Estate Loans Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	247	2,368
Past due 90 days or more and still accruing	0	268
Real Estate Loans Secured by 1 - 4 Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	4,932	9,458
Past due 90 days or more and still accruing	0	539
Other Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	1,472	6,045
Past due 90 days or more and still accruing	0	0
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	290	1,844
Past due 90 days or more and still accruing	30	0
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	3,003	37
Past due 90 days or more and still accruing	$ 0	$ 1