Securities (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Sep. 30, 2011
Available-for-sale:
Available-for-sale Securities, Amortized Cost	$ 174,231	$ 174,069
Available-for-sale securities, Unrealized Gains	5,936	5,363
Available-for-sale securities, Unrealized Losses	6,695	8,642
Available-for-sale, Fair Value	173,472	170,790
Held-to-maturity:
Held-to-maturity, Amortized Cost	69,729	80,423
Held-to-maturity, Unrealized Gains	1,536	1,706
Held-to-maturity, Unrealized Losses	47	93
Held-to-maturity, Fair Value	71,218	82,036
U.S. government and agency obligations [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	30,231	39,228
Available-for-sale securities, Unrealized Gains	421	574
Available-for-sale securities, Unrealized Losses	2	8
Available-for-sale, Fair Value	30,650	39,794
Held-to-maturity:
Held-to-maturity, Amortized Cost	22,003	17,533
Held-to-maturity, Unrealized Gains	70	95
Held-to-maturity, Unrealized Losses	5	13
Held-to-maturity, Fair Value	22,068	17,615
Municipal obligations [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	29,500	30,086
Available-for-sale securities, Unrealized Gains	2,233	1,745
Available-for-sale securities, Unrealized Losses		3
Available-for-sale, Fair Value	31,733	31,828
Held-to-maturity:
Held-to-maturity, Amortized Cost	6,774	10,896
Held-to-maturity, Unrealized Gains	430	360
Held-to-maturity, Fair Value	7,204	11,256
Corporate obligations [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	8,780	3,985
Available-for-sale securities, Unrealized Gains	27	75
Available-for-sale securities, Unrealized Losses	363	845
Available-for-sale, Fair Value	8,444	3,215
Equity securities in financial institutions [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	1,545	2,468
Available-for-sale securities, Unrealized Gains	70	46
Available-for-sale securities, Unrealized Losses	83	1,013
Available-for-sale, Fair Value	1,532	1,501
Other equity securities [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	1,000	1,000
Available-for-sale securities, Unrealized Losses	10	56
Available-for-sale, Fair Value	990	944
Mutual funds [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	2,780	2,697
Available-for-sale securities, Unrealized Gains	58	51
Available-for-sale securities, Unrealized Losses	17	11
Available-for-sale, Fair Value	2,821	2,737
Trust preferred securities [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	14,150	14,405
Available-for-sale securities, Unrealized Gains	67	39
Available-for-sale securities, Unrealized Losses	6,061	6,494
Available-for-sale, Fair Value	8,156	7,950
Mortgage-backed securities: Agency [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	60,651	65,533
Available-for-sale securities, Unrealized Gains	2,798	2,560
Available-for-sale securities, Unrealized Losses	6
Available-for-sale, Fair Value	63,443	68,093
Held-to-maturity:
Held-to-maturity, Amortized Cost	7,137	8,708
Held-to-maturity, Unrealized Gains	301	311
Held-to-maturity, Unrealized Losses	39	49
Held-to-maturity, Fair Value	7,399	8,970
Collateralized mortgage obligations: Agency [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	23,582	12,180
Available-for-sale securities, Unrealized Gains	238	247
Available-for-sale securities, Unrealized Losses	23	8
Available-for-sale, Fair Value	23,797	12,419
Held-to-maturity:
Held-to-maturity, Amortized Cost	32,885	41,206
Held-to-maturity, Unrealized Gains	720	904
Held-to-maturity, Unrealized Losses	3	12
Held-to-maturity, Fair Value	33,602	42,098
Collateralized mortgage obligations: Private-label [Member]
Available-for-sale:
Available-for-sale Securities, Amortized Cost	2,012	2,487
Available-for-sale securities, Unrealized Gains	24	26
Available-for-sale securities, Unrealized Losses	130	204
Available-for-sale, Fair Value	1,906	2,309
Held-to-maturity:
Held-to-maturity, Amortized Cost	930	2,080
Held-to-maturity, Unrealized Gains	15	36
Held-to-maturity, Unrealized Losses		19
Held-to-maturity, Fair Value	$ 945	$ 2,097

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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