Loans Receivable (Details 8) (Purchased Other Loans [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	$ 575	$ 737
90 Days or Greater	1,106	714
Total Past Due	1,681	1,451
Current	189,795	49,902
Gross loans receivable	191,476	51,353
90 Days or More and Still Accruing	0	135
Commercial business [Member]
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	575	662
90 Days or Greater	1,106	437
Total Past Due	1,681	1,099
Current	167,939	42,105
Gross loans receivable	169,620	43,204
90 Days or More and Still Accruing	0	0
Real estate construction and land development [Member]
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	0	0
90 Days or Greater	0	0
Total Past Due	0	0
Current	2,155	0
Gross loans receivable	2,155	0
90 Days or More and Still Accruing	0	0
Consumer [Member]
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	0	75
90 Days or Greater	0	216
Total Past Due	0	291
Current	10,765	6,474
Gross loans receivable	10,765	6,765
90 Days or More and Still Accruing	0	135
Commercial and industrial [Member] | Commercial business [Member]
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	29	0
90 Days or Greater	223	0
Total Past Due	252	0
Current	46,197	11,981
Gross loans receivable	46,449	11,981
90 Days or More and Still Accruing	0	0
Owner-occupied commercial real estate [Member] | Commercial business [Member]
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	333	662
90 Days or Greater	0	0
Total Past Due	333	662
Current	74,888	25,748
Gross loans receivable	75,221	26,410
90 Days or More and Still Accruing	0	0
Non-owner occupied commercial real estate [Member] | Commercial business [Member]
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	213	0
90 Days or Greater	883	437
Total Past Due	1,096	437
Current	46,854	4,376
Gross loans receivable	47,950	4,813
90 Days or More and Still Accruing	0	0
One-to-four family residential [Member]
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	0	0
90 Days or Greater	0	61
Total Past Due	0	61
Current	8,936	1,323
Gross loans receivable	8,936	1,384
90 Days or More and Still Accruing	0	0
One-to-four family residential [Member] | Real estate construction and land development [Member]
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	0	0
90 Days or Greater	0	0
Total Past Due	0	0
Current	0	0
Gross loans receivable	0	0
90 Days or More and Still Accruing	0	0
Five or more family residential and commercial properties [Member] | Real estate construction and land development [Member]
Schedule of balances of other purchased past due loans segregated by segments and classes of loans
30-89 Days	0	0
90 Days or Greater	0	0
Total Past Due	0	0
Current	2,155	0
Gross loans receivable	2,155	0
90 Days or More and Still Accruing	$ 0	$ 0