Investment Securities (Amortized Cost And Fair Value Of Securities) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	$ 161,355	$ 143,596
Available-for-Sale, Gross Unrealized Gains	6,144	9,041
Available-for-Sale Gross Unrealized Losses	2,448	94
Available-for-sale, Fair Value	165,051	152,543
Held-to-Maturity, Amortized Cost	6,772	7,848
Held-to-Maturity, Gross Unrealized Gains	69	466
Held-to-Maturity, Gross Unrealized Losses	46	0
Held-to-Maturity, Fair Value	6,795	8,314
Debt Securities
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	161,355	143,596
Available-for-Sale, Gross Unrealized Gains	6,053	8,972
Available-for-Sale Gross Unrealized Losses	2,448	94
Available-for-sale, Fair Value	164,960	152,474
Equity Securities
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	0	0
Available-for-Sale, Gross Unrealized Gains	91	69
Available-for-Sale Gross Unrealized Losses	0	0
Available-for-sale, Fair Value	91	69
Held-to-Maturity, Amortized Cost	0
Held-to-Maturity, Fair Value	0
Agency bonds and notes
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	15,885	15,940
Available-for-Sale, Gross Unrealized Gains	13	124
Available-for-Sale Gross Unrealized Losses	553	0
Available-for-sale, Fair Value	15,345	16,064
Agency mortgage backed
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	42,831	42,255
Available-for-Sale, Gross Unrealized Gains	346	1,165
Available-for-Sale Gross Unrealized Losses	329	0
Available-for-sale, Fair Value	42,848	43,420
Held-to-Maturity, Amortized Cost	873	1,342
Held-to-Maturity, Gross Unrealized Gains	63	118
Held-to-Maturity, Gross Unrealized Losses	0	0
Held-to-Maturity, Fair Value	936	1,460
Agency CMO
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	24,730	17,186
Available-for-Sale, Gross Unrealized Gains	195	358
Available-for-Sale Gross Unrealized Losses	295	3
Available-for-sale, Fair Value	24,630	17,541
Privately-issued CMO
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	4,020	4,283
Available-for-Sale, Gross Unrealized Gains	682	1,006
Available-for-Sale Gross Unrealized Losses	0	0
Available-for-sale, Fair Value	4,702	5,289
Privately-Issued Abs
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	5,894	5,797
Available-for-Sale, Gross Unrealized Gains	2,229	1,481
Available-for-Sale Gross Unrealized Losses	1	51
Available-for-sale, Fair Value	8,122	7,227
Municipal
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	65,849	58,135
Available-for-Sale, Gross Unrealized Gains	2,572	4,838
Available-for-Sale Gross Unrealized Losses	1,270	40
Available-for-sale, Fair Value	67,151	62,933
Held-to-Maturity, Amortized Cost	5,899	6,506
Held-to-Maturity, Gross Unrealized Gains	6	348
Held-to-Maturity, Gross Unrealized Losses	46	0
Held-to-Maturity, Fair Value	5,859	6,854
SBA certificates
Schedule of Cost-method Investments [Line Items]
Available-for-Sale, Amortized Cost	2,146
Available-for-Sale, Gross Unrealized Gains	16
Available-for-Sale Gross Unrealized Losses	0
Available-for-sale, Fair Value	2,162
Held-to-Maturity, Amortized Cost	0
Held-to-Maturity, Fair Value	$ 0

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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+ Details

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References+ Details

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details

- Definition

For an unclassified balance sheet, this item represents investments in debt securities which are categorized as held-to-maturity. The held-to-maturity category is for those securities that the entity has the positive intent and ability to hold until maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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+ Details

- Definition

This item represents the aggregate fair value of investments in debt securities as of the balance sheet date and which are categorized as held-to-maturity.

+ References+ Details

- Definition

As of the balance sheet date, the excess of fair value over carrying value (amortized cost) of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding gain.

+ References+ Details

- Definition

As of the balance sheet date, the excess of carrying value (amortized cost) over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss.

+ References+ Details