Loans Receivable (Details 5) (Originated Loans [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	$ 9,759	[1]	$ 12,458	[1]
Commercial business [Member]
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	5,285	[1]	5,492	[1]
Real estate construction and land development [Member]
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	3,852	[1]	6,420	[1]
Consumer [Member]
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	39	[1]	157	[1]
Commercial and industrial [Member] | Commercial business [Member]
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	4,441	[1]	4,560	[1]
Owner-occupied commercial real estate [Member] | Commercial business [Member]
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	844	[1]	563	[1]
Non-owner occupied commercial real estate [Member] | Commercial business [Member]
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	0	[1]	369	[1]
One-to-four family residential [Member]
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	583	[1]	389	[1]
One-to-four family residential [Member] | Real estate construction and land development [Member]
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	1,467	[1]	3,063	[1]
Five or more family residential and commercial properties [Member] | Real estate construction and land development [Member]
Schedule of nonaccrual loan receivable segregated by segment
Gross originated nonaccrual loans	$ 2,385	[1]	$ 3,357	[1]

[1] $1.9 million and $1.2 million of nonaccrual originated loans were guaranteed by governmental agencies at September 30, 2013 and December 31, 2012, respectively.