Covered Assets (Aging Analysis of Non-Credit Impaired Loans) (Details) (Acquired Non Impaired Assets [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	$ 153,798	$ 166,636
Loans and Leases Receivable, Covered Loans, Current	149,758	159,195
Loans and Leases Receivable, Covered Loans, 30 Days	286	2,963
Loans and Leases Receivable, Covered Loans, 60 Days	106	529
Loans and Leases Receivable, Covered Assets, 90 Days	3,648	3,949
Loans and Leases Receivable, Covered Assets, Past Due	4,040	7,441
Loans and Leases Receivable, Covered Loans, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process	1.51%	4.47%
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	26,688	28,460
Loans and Leases Receivable, Covered Loans, Current	24,351	27,411
Loans and Leases Receivable, Covered Loans, 30 Days	286	78
Loans and Leases Receivable, Covered Loans, 60 Days	63	0
Loans and Leases Receivable, Covered Assets, 90 Days	1,988	971
Loans and Leases Receivable, Covered Assets, Past Due	2,337	1,049
Loans and Leases Receivable, Covered Loans, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process	8.76%	3.69%
Construction - Speculative [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	0	0
Loans and Leases Receivable, Covered Loans, Current	0	0
Loans and Leases Receivable, Covered Loans, 30 Days	0	0
Loans and Leases Receivable, Covered Loans, 60 Days	0	0
Loans and Leases Receivable, Covered Assets, 90 Days	0	0
Loans and Leases Receivable, Covered Assets, Past Due	0	0
Construction - Custom [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	0	0
Loans and Leases Receivable, Covered Loans, Current	0	0
Loans and Leases Receivable, Covered Loans, 30 Days	0	0
Loans and Leases Receivable, Covered Loans, 60 Days	0	0
Loans and Leases Receivable, Covered Assets, 90 Days	0	0
Loans and Leases Receivable, Covered Assets, Past Due	0	0
Land - Acquisition & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	4,367	4,810
Loans and Leases Receivable, Covered Loans, Current	4,331	4,774
Loans and Leases Receivable, Covered Loans, 30 Days	0	0
Loans and Leases Receivable, Covered Loans, 60 Days	0	0
Loans and Leases Receivable, Covered Assets, 90 Days	36	36
Loans and Leases Receivable, Covered Assets, Past Due	36	36
Loans and Leases Receivable, Covered Loans, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process	0.82%	0.75%
Land - Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	230	245
Loans and Leases Receivable, Covered Loans, Current	196	199
Loans and Leases Receivable, Covered Loans, 30 Days	0	0
Loans and Leases Receivable, Covered Loans, 60 Days	0	0
Loans and Leases Receivable, Covered Assets, 90 Days	34	46
Loans and Leases Receivable, Covered Assets, Past Due	34	46
Loans and Leases Receivable, Covered Loans, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process	14.78%	18.78%
Multi-Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	17,000	18,852
Loans and Leases Receivable, Covered Loans, Current	17,000	17,511
Loans and Leases Receivable, Covered Loans, 30 Days	0	0
Loans and Leases Receivable, Covered Loans, 60 Days	0	0
Loans and Leases Receivable, Covered Assets, 90 Days	0	1,341
Loans and Leases Receivable, Covered Assets, Past Due	0	1,341
Loans and Leases Receivable, Covered Loans, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process	0.00%	7.11%
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	82,371	89,499
Loans and Leases Receivable, Covered Loans, Current	80,820	84,949
Loans and Leases Receivable, Covered Loans, 30 Days	0	2,779
Loans and Leases Receivable, Covered Loans, 60 Days	0	455
Loans and Leases Receivable, Covered Assets, 90 Days	1,551	1,316
Loans and Leases Receivable, Covered Assets, Past Due	1,551	4,550
Loans and Leases Receivable, Covered Loans, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process	1.88%	5.08%
Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	8,351	9,416
Loans and Leases Receivable, Covered Loans, Current	8,308	9,416
Loans and Leases Receivable, Covered Loans, 30 Days	0	0
Loans and Leases Receivable, Covered Loans, 60 Days	43	0
Loans and Leases Receivable, Covered Assets, 90 Days	0	0
Loans and Leases Receivable, Covered Assets, Past Due	43	0
Loans and Leases Receivable, Covered Loans, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process	0.51%	0.00%
HELOC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	14,203	14,750
Loans and Leases Receivable, Covered Loans, Current	14,164	14,334
Loans and Leases Receivable, Covered Loans, 30 Days	0	103
Loans and Leases Receivable, Covered Loans, 60 Days	0	74
Loans and Leases Receivable, Covered Assets, 90 Days	39	239
Loans and Leases Receivable, Covered Assets, Past Due	39	416
Loans and Leases Receivable, Covered Loans, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process	0.27%	2.82%
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance of acquired loans	588	604
Loans and Leases Receivable, Covered Loans, Current	588	601
Loans and Leases Receivable, Covered Loans, 30 Days	0	3
Loans and Leases Receivable, Covered Loans, 60 Days	0	0
Loans and Leases Receivable, Covered Assets, 90 Days	0	0
Loans and Leases Receivable, Covered Assets, Past Due	$ 0	$ 3
Loans and Leases Receivable, Covered Loans, Ratio of Total Past Due Loans to Total Loans Receivable, Net of Charge Offs and Loans in Process	0.00%	0.50%