Loans Receivable and Allowance for Loan Losses (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Non-covered loans and covered loans, by class
Total Past Due	$ 0
Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	10,411	7,796
Greater Than 90 Days	1,473	0
Total Past Due	11,884	7,796
Non-Accrual	32,793	37,719
Current	928,663	1,169,991
Total Loans	973,340	1,215,506
Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	586	4,694
Greater Than 90 Days	0	0
Total Past Due	586	4,694
Non-Accrual	47,646	45,213
Current	62,733	76,369
Total Loans	110,965	126,276
Commercial and industrial [Member] | Acquired with credit deterioration [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	1	0
Greater Than 90 Days	0	0
Total Past Due	1	0
Non-Accrual	129	178
Current	2,288	4,946
Total Loans	2,418	5,124
Commercial and industrial [Member] | Acquired with credit deterioration [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	0
Greater Than 90 Days	0	0
Total Past Due	0	0
Non-Accrual	745	378
Current	2,014	0
Total Loans	2,759	378
Commercial and industrial [Member] | Remaining loans [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	85	0
Greater Than 90 Days	0	0
Total Past Due	85	0
Non-Accrual	655	2,817
Current	73,483	61,795
Total Loans	74,223	64,612
Commercial and industrial [Member] | Remaining loans [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	2,672
Greater Than 90 Days	0	0
Total Past Due	0	2,672
Non-Accrual	100	0
Current	9,305	7,204
Total Loans	9,405	9,876
Commercial real estate [Member] | Acquired with credit deterioration [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	1,269	89
Greater Than 90 Days	0	0
Total Past Due	1,269	89
Non-Accrual	5,279	8,527
Current	43,265	57,542
Total Loans	49,813	66,158
Commercial real estate [Member] | Acquired with credit deterioration [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	0
Greater Than 90 Days	0	0
Total Past Due	0	0
Non-Accrual	14,737	16,204
Current	5,527	2,039
Total Loans	20,264	18,243
Commercial real estate [Member] | Remaining loans [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	772	1,025
Greater Than 90 Days	0	0
Total Past Due	772	1,025
Non-Accrual	18,294	17,581
Current	536,494	266,165
Total Loans	555,560	284,771
Commercial real estate [Member] | Remaining loans [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	1,074
Greater Than 90 Days	0	0
Total Past Due	0	1,074
Non-Accrual	3,998	1,462
Current	21,462	30,840
Total Loans	25,460	33,376
Construction [Member] | Acquired with credit deterioration [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	0
Greater Than 90 Days	0	0
Total Past Due	0	0
Non-Accrual	0	0
Current	2,001	3,393
Total Loans	2,001	3,393
Construction [Member] | Acquired with credit deterioration [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	0
Greater Than 90 Days	0	0
Total Past Due	0	0
Non-Accrual	15,949	18,896
Current	0	3,266
Total Loans	15,949	22,162
Construction [Member] | Remaining loans [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	0
Greater Than 90 Days	0	0
Total Past Due	0	0
Non-Accrual	2,423	5,630
Current	8,818	6,248
Total Loans	11,241	11,878
Construction [Member] | Remaining loans [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	91
Greater Than 90 Days	0	0
Total Past Due	0	91
Non-Accrual	6,506	2,584
Current	6,477	13,089
Total Loans	12,983	15,764
Residential real estate [Member] | Acquired with credit deterioration [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	477	1,002
Greater Than 90 Days	0	0
Total Past Due	477	1,002
Non-Accrual	947	1,423
Current	11,215	16,156
Total Loans	12,639	18,581
Residential real estate [Member] | Acquired with credit deterioration [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	0
Greater Than 90 Days	0	0
Total Past Due	0	0
Non-Accrual	4,020	4,002
Current	255	0
Total Loans	4,275	4,002
Residential real estate [Member] | First mortgages [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	519	314
Greater Than 90 Days	0	0
Total Past Due	519	314
Non-Accrual	549	700
Current	69,149	14,652
Total Loans	70,217	15,666
Residential real estate [Member] | First mortgages [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	565	570
Greater Than 90 Days	0	0
Total Past Due	565	570
Non-Accrual	0	0
Current	6,864	8,600
Total Loans	7,429	9,170
Residential real estate [Member] | Home equity [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	50	183
Greater Than 90 Days	0	0
Total Past Due	50	183
Non-Accrual	915	823
Current	24,034	18,223
Total Loans	24,999	19,229
Residential real estate [Member] | Home equity [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	281
Greater Than 90 Days	0	0
Total Past Due	0	281
Non-Accrual	1,364	1,532
Current	7,210	7,479
Total Loans	8,574	9,292
Consumer [Member] | Acquired with credit deterioration [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	11	7
Greater Than 90 Days	0	0
Total Past Due	11	7
Non-Accrual	80	6
Current	459	233
Total Loans	550	246
Consumer [Member] | Remaining loans [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	1	14
Greater Than 90 Days	0	0
Total Past Due	1	14
Non-Accrual	56	34
Current	1,844	1,917
Total Loans	1,901	1,965
Mortgage Warehouse [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due		0
Greater Than 90 Days		0
Total Past Due		0
Non-Accrual		0
Current		619,318
Total Loans		619,318
Mortgage Warehouse [Member] | Acquired with credit deterioration [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0
Greater Than 90 Days	0
Total Past Due	0
Non-Accrual	0
Current	0
Total Loans	0
Mortgage Warehouse [Member] | Remaining loans [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0
Greater Than 90 Days	0
Total Past Due	0
Non-Accrual	0
Current	9,321
Total Loans	9,321
Manufactured housing [Member] | Acquired with credit deterioration [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	834	1,681
Greater Than 90 Days	0	0
Total Past Due	834	1,681
Non-Accrual	2,814	0
Current	3,933	7,048
Total Loans	7,581	8,729
Manufactured housing [Member] | Acquired with credit deterioration [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	0	0
Greater Than 90 Days	0	0
Total Past Due	0	0
Non-Accrual	66	77
Current	0	0
Total Loans	66	77
Manufactured housing [Member] | Remaining loans [Member] | Non-covered loans [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	6,392	3,481
Greater Than 90 Days	1,473	0
Total Past Due	7,865	3,481
Non-Accrual	652	0
Current	142,359	92,355
Total Loans	150,876	95,836
Manufactured housing [Member] | Remaining loans [Member] | Covered loan [Member]
Non-covered loans and covered loans, by class
30-89 Days Past Due	21	6
Greater Than 90 Days	0	0
Total Past Due	21	6
Non-Accrual	161	78
Current	3,619	3,852
Total Loans	$ 3,801	$ 3,936