Loans Receivable (Details 3) (Originated Loans Receivable [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	$ 911,412	$ 823,451
Loans receivable, OAEM	14,736	13,413
Loans receivable, Substandard	36,985	38,756
Loans receivable, Doubtful	1,274	961
Gross loans receivable	964,407	876,581
Commercial business [Member]
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	797,367	692,300
Loans receivable, OAEM	9,932	10,698
Loans receivable, Substandard	29,147	27,620
Loans receivable, Doubtful	1,272	951
Gross loans receivable	837,718	731,569
Real estate construction and land development [Member]
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	47,739	65,164
Loans receivable, OAEM	4,534	1,795
Loans receivable, Substandard	6,485	10,291
Loans receivable, Doubtful	0	0
Gross loans receivable	58,758	77,250
Consumer [Member]
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	27,560	28,748
Loans receivable, OAEM	0	0
Loans receivable, Substandard	467	156
Loans receivable, Doubtful	2	10
Gross loans receivable	28,029	28,914
Commercial and industrial [Member] | Commercial business [Member]
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	271,774	254,593
Loans receivable, OAEM	2,533	3,908
Loans receivable, Substandard	17,327	18,157
Loans receivable, Doubtful	1,272	582
Gross loans receivable	292,906	277,240
Owner-occupied commercial real estate [Member] | Commercial business [Member]
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	189,060	181,630
Loans receivable, OAEM	2,889	2,658
Loans receivable, Substandard	5,472	4,206
Loans receivable, Doubtful	0	0
Gross loans receivable	197,421	188,494
Non-owner occupied commercial real estate [Member] | Commercial business [Member]
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	336,533	256,077
Loans receivable, OAEM	4,510	4,132
Loans receivable, Substandard	6,348	5,257
Loans receivable, Doubtful	0	369
Gross loans receivable	347,391	265,835
One-to-four family residential [Member]
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	38,746	37,239
Loans receivable, OAEM	270	920
Loans receivable, Substandard	886	689
Loans receivable, Doubtful	0	0
Gross loans receivable	39,902	38,848
One-to-four family residential [Member] | Real estate construction and land development [Member]
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	11,420	16,446
Loans receivable, OAEM	4,534	1,795
Loans receivable, Substandard	4,100	6,934
Loans receivable, Doubtful	0	0
Gross loans receivable	20,054	25,175
Five or more family residential and commercial properties [Member] | Real estate construction and land development [Member]
Schedule of balances of loans receivable - originated loans
Loans receivable, Pass	36,319	48,718
Loans receivable, OAEM	0	0
Loans receivable, Substandard	2,385	3,357
Loans receivable, Doubtful	0	0
Gross loans receivable	$ 38,704	$ 52,075