BCSB Bancorp 10-K 23 Dec 13 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Sep. 30, 2013	Dec. 11, 2013	Mar. 31, 2013
Document Information [Line Items]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	30-Sep-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'BCSB	'	'
Entity Registrant Name	'BCSB BANCORP INC.	'	'
Entity Central Index Key	'0001391137	'	'
Current Fiscal Year End Date	'--09-30	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Smaller Reporting Company	'	'
Entity Common Stock, Shares Outstanding	'	3,192,117	'
Entity Public Float	'	'	$45,000,000

CONSOLIDATED_STATEMENTS_OF_FIN

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Assets	'	'
Cash	$8,073	$8,389
Interest bearing deposits in other banks	11,534	11,501
Federal Funds sold	6,847	31,034
Cash and cash equivalents	26,454	50,924
Investment securities, available for sale	4,754	4,628
Loans held for sale	'	806
Loans receivable, net of allowances of $5,604 and $5,470	324,136	334,810
Mortgage backed securities, available for sale	220,050	213,563
Foreclosed real estate	2,861	1,674
Premises and equipment, net	9,908	10,080
Premises and equipment, net, held for sale	'	208
Federal Home Loan Bank of Atlanta stock, at cost	771	959
Federal Reserve Bank stock, at cost	1,394	1,381
Bank owned life insurance	17,473	16,869
Accrued interest and other assets	11,240	9,197
Total assets	619,041	645,099
Deposits:	'	'
Non-interest bearing	38,462	35,264
Interest-bearing	505,307	531,092
Total deposits	543,769	566,356
Junior subordinated debentures	17,011	17,011
Other liabilities	8,461	6,593
Total Liabilities	569,241	589,960
Commitments and contingencies (Notes 3, 4, 5, 7, 8, 9, 10, 11, 12 ,13,14,15,16, and 17)	'	'
Stockholders' Equity	'	'
Common stock (par value $.01 - 50,000,000 authorized, 3,190,430 and 3,188,665 shares issued and outstanding at September 30, 2013 and September 30, 2012, respectively)	32	32
Stock warrants	'	481
Additional paid-in capital	39,320	39,880
Obligation under rabbi trust	994	1,013
Retained earnings	15,861	14,041
Accumulated other comprehensive (loss) income, net of related deferred tax effect	-4,686	1,511
Employee stock ownership plan	-774	-855
Stock held by rabbi trust	-947	-964
Total stockholders' equity	49,800	55,139
Total liabilities and stockholders' equity	$619,041	$645,099

CONSOLIDATED_STATEMENTS_OF_FIN1

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, except Share data, unless otherwise specified
Loans receivable, allowances	$5,604	$5,470
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	3,190,430	3,188,665
Common stock, shares outstanding	3,190,430	3,188,665

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Interest Income	'	'
Interest and Fees on loans	$19,365	$20,929
Interest on mortgage backed securities	4,765	4,639
Interest and dividends on investment securities	235	373
Other interest income	73	130
Total interest income	24,438	26,071
Interest Expense	'	'
Interest on deposits	4,709	6,333
Other interest expense- debentures	613	644
Total interest expense	5,322	6,977
Net interest income	19,116	19,094
Provision for losses on loans	1,100	1,200
Net interest income after provision for losses on loans	18,016	17,894
Other Income	'	'
Total other-than-temporary impairment charges	'	-347
Less: Portion included in other comprehensive income (pre-tax)	'	-23
Net other-than-temporary impairment charges on securities available for sale	'	-370
(Loss) gain on sale of foreclosed real estate and repossessed assets	-30	455
Gain (loss) on sale of mortgage-backed securities	69	-6
Gain on sale of premises and equipment	114	'
Mortgage banking operations	153	108
Fees on transaction accounts	580	612
Income from bank owned life insurance	595	641
Miscellaneous income	1,052	1,010
Total other income	2,533	2,450
Non-Interest Expenses	'	'
Salaries and related expense	10,079	10,516
Occupancy expense	2,380	2,359
Data processing expense	1,394	1,312
Federal deposit insurance premiums	624	654
Property and equipment expense	542	552
Professional fees	324	511
Advertising	328	318
Telephone, postage and office supplies	296	311
Provision for loss on premises held for sale	'	150
Foreclosure and impaired loan expenses	510	416
Merger related expense	579	'
Other expenses	350	525
Total non-interest expense	17,406	17,624
Income before income tax expense	3,143	2,720
Income tax expense	1,323	920
Net income	$1,820	$1,800
Per Share Data:	'	'
Basic earnings per common share	$0.58	$0.58
Diluted earnings per common share	$0.56	$0.56
Dividends per common share	'	'

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Net income	$1,820	$1,800
Other comprehensive income net of tax:	'	'
Unrealized net holding gains (loss) on available-for-sale portfolios, net of tax	-6,155	934
Unrealized net holding gains (loss) on reclassification adjustment for (gains) losses net of tax	-42	-6
Comprehensive (loss) income	($4,377)	$2,728

CONSOLIDATED_STATEMENTS_OF_COM1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Unrealized net holding gains (loss) on available-for-sale portfolios, tax	($4,103)	$604
Unrealized net holding gains (loss) on reclassification adjustment for (gains) losses, tax	($27)	$2

CONSOLIDATED_STATEMENTS_OF_STO

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Total	Common Stock	Stock Warrants	Additional Paid-In Capital	Obligation Under Rabbi Trust	Retained Earnings	Accumulated Other Comprehensive Income (loss)	Employee Stock Ownership Plan	Stock Held By Rabbi Trust
In Thousands
Beginning balance at Sep. 30, 2011	$51,959	$32	$481	$39,510	$1,014	$12,241	$583	($937)	($965)
Compensation under stock based benefit plans	492	'	'	410	'	'	'	82	'
Repurchase of Common Stock	-40	'	'	-40	'	'	'	'	'
Acquisition of stock for rabbi trust	'	'	'	'	53	'	'	'	-53
Distribution of stock for rabbi trust	'	'	'	'	-54	'	'	'	54
Net income	1,800	'	'	'	'	1,800	'	'	'
Net change in unrealized gain (loss) on investment securities and mortgage backed securities, net of tax of $604 in 2012 and $4,103 in 2013	928	'	'	'	'	'	928	'	'
Ending balance at Sep. 30, 2012	55,139	32	481	39,880	1,013	14,041	1,511	-855	-964
Compensation under stock based benefit plans	545	'	'	464	'	'	'	81	'
Repurchase of Common Stock	-70	'	'	-70	'	'	'	'	'
Redemption of stock warrants	-1,442	'	-481	-961	'	'	'	'	'
Acquisition of stock for rabbi trust	-2	'	'	'	9	'	'	'	-11
Distribution of stock for rabbi trust	'	'	'	'	-28	'	'	'	28
Stock options exercised	7	'	'	7	'	'	'	'	'
Net income	1,820	'	'	'	'	1,820	'	'	'
Net change in unrealized gain (loss) on investment securities and mortgage backed securities, net of tax of $604 in 2012 and $4,103 in 2013	-6,197	'	'	'	'	'	-6,197	'	'
Ending balance at Sep. 30, 2013	$49,800	$32	'	$39,320	$994	$15,861	($4,686)	($774)	($947)

CONSOLIDATED_STATEMENTS_OF_STO1

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Net change in unrealized gain (loss) on investment securities and mortgage backed securities, tax	($4,103)	$604

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Operating Activities	'	'
Net income	$1,820	$1,800
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
(Gain) loss on sale of mortgage-backed securities	-69	6
Other-than-temporary impairment charges on securities available for sale	'	370
Accretion of deferred loan fees, net	-302	-245
Non-cash compensation under stock-based benefit plan	545	492
Provision for losses on loans	1,100	1,200
Amortization of purchase premiums and discounts, net	592	797
Provision for depreciation	750	729
Provision for loss on premises held for sale	'	150
Loss (gain) on sale of foreclosed real estate and repossessed assets	30	-455
Gain on sale of property and equipment	-114	'
Increase in cash surrender value of bank owned life insurance	-595	-641
Decrease in accrued interest and other assets	1,983	2,009
Gain on sale of loans	-127	-138
Loans originated for sale	-9,853	-11,067
Proceeds from loans sold	10,786	10,399
Increase in other liabilities	1,920	794
Decrease in obligation under Rabbi Trust	-16	'
Net cash (used) provided by operating activities	8,466	6,200
Cash Flows from Investing Activities	'	'
Proceeds from maturities of investment securities - available for sale	'	2,000
Net decrease in loans	6,995	27,852
Proceeds from sale of foreclosed real estate and repossessed assets	1,444	3,006
Proceeds from sale of mortgage-backed securities-available for sale	42,717	1,225
Purchase of mortgage backed securities - available for sale	-105,822	-103,022
Principal collected on mortgage backed securities	45,957	39,775
Investment in premises and equipment	-556	-1,234
Proceeds from sale of property and equipment	300	'
Purchase of Federal Reserve Bank Stock	-12	-1,433
Net cash used by investing activities	-8,790	-31,614
Cash Flows from Financing Activities	'	'
Net (decrease) increase in deposits	-22,587	16,342
Net decrease in advances by borrowers for taxes and insurance	-54	-72
Proceeds from stock options exercised	7	'
Repurchase of common stock	-70	-40
Repurchase of TARP warrant	-1,442	'
Net cash (used) provided by financing activities	-24,146	16,230
(Decrease) increase in cash and cash equivalents	-24,470	-9,184
Cash and cash equivalents at beginning of period	50,924	60,108
Cash and cash equivalents at end of period	26,454	50,924
Cash paid during the period for:	'	'
Interest	4,705	6,950
Income taxes	487	200
Supplemental Disclosure of Non-cash investing activity:	'	'
Transfer from loans to real estate owned	2,737	1,226
Transfer from real estate owned to loans	76	650
Transfer from premises and equipment to premises and equipment held for sale	'	208
Federal Home Loan Bank of Atlanta	'	'
Cash Flows from Investing Activities	'	'
Redemption of bank stock	187	165
Federal Reserve Bank Stock	'	'
Cash Flows from Investing Activities	'	'
Redemption of bank stock	'	$52

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Sep. 30, 2013
Summary of Significant Accounting Policies	'
	Note 1 - Summary of Significant Accounting Policies
	Principles of Consolidation - BCSB Bancorp, Inc. (the “Company”) owns 100% of Baltimore County Savings Bank, and its subsidiaries (the “Bank”). The Bank owns 100% of Ebenezer Road, Inc. and Lyons Properties, LLC. The accompanying consolidated financial statements include the accounts and transactions of these companies on a consolidated basis since the date of incorporation. All intercompany transactions have been eliminated in the consolidated financial statements. Ebenezer Road, Inc. sells insurance products and Lyons Properties, LLC holds real estate owned through foreclosure or deeds in lieu of foreclosure.
	Business - The Company’s primary purpose is ownership of the Bank. The Bank’s primary business activity is the acceptance of deposits from the general public in its market area and using the proceeds for investments and loan originations. The Bank is subject to competition from other financial institutions. The Bank is subject to the regulations of certain federal and State agencies and undergoes periodic examinations by those regulatory authorities.
	Basis of Financial Statement Presentation - The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America. In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the statement of financial condition and revenues and expenses for the period. Actual results could differ significantly from those estimates. Material estimates that are particularly susceptible to significant change in the near-term relate to the determination of the allowance for loan losses, valuations of foreclosed real estate, intangible assets, deferred income taxes and other-than-temporary impairment of investment securities.
	Investments Securities and Mortgage Backed Securities – We designate securities into one of three categories at the time of purchase. Debt securities that we have the positive intent and ability to hold to maturity are classified as held to maturity and recorded at amortized cost. Debt and equity securities are classified as trading securities if bought and held principally for the purpose of selling them in the near term. Trading securities are reported at the estimated fair value, with unrealized gains and losses included in earnings. Debt securities not classified as held to maturity and debt and equity securities not classified as trading securities are considered available for sale and are reported at estimated fair value, with unrealized gains and losses reported as a separate component of stockholders’ equity, net of tax effects, in accumulated other comprehensive income.
	Estimated fair value is determined based on bid prices received from third party pricing services. Gains or losses on the sale of investments are calculated using a specific-identification basis and are determined on a trade-date basis. Premiums and discounts on investment and mortgage-backed securities are amortized over the expected life of the security using the interest method.
	A decline in the fair value of any available for sale or held to maturity security, below cost, that is deemed to be other than temporary, results in a reduction in the carrying amount to fair value. The impairment loss is bifurcated between that related to credit loss which is recognized in non-interest income and that related to all other factors which is recognized in other comprehensive income. To determine whether an impairment is other than temporary, the Company considers, among other thinks, the duration and the extent to which the fair value of an investment is less than its cost, changes in value subsequent to year end, forecast performance of the issuer, and whether the Company has the intent to hold the investment until market price recovery, or for debt securities whether the Company has the intent to sell the security or more likely than not will be required to sell the debt security before its anticipated recovery.
	Restricted Stock Investments - The Bank, as a member of the Federal Home Loan Bank System, is required to maintain an investment in capital stock of the Federal Home Loan Bank of Atlanta (“FHLB”) in varying amounts based on balances of outstanding home loans and on amounts borrowed from the FHLB. Because no ready market exists for this stock and it has no quoted market value, the Bank’s investment in this stock is carried at cost.
	The Bank, as a state member of the Federal Reserve Bank must subscribe in capital stock in its district in an amount equal to six percent of its combined capital and surplus (but excluding retained earnings). Three percent of this amount must be paid in and the remaining three percent is on call.
	Loans Receivable - Loans receivable are stated at unpaid principal balances, less undisbursed portion of loans in process, unearned interest on consumer loans, deferred loan origination fees and the allowance for loan losses, since management has the ability and intention to hold them to maturity.
	Interest income is accrued on the unpaid principal balance. Loan origination fees and certain direct loan origination costs are deferred and recognized by the interest method over the contractual life of the related loan as an adjustment of yield.
	Accrual of interest is discontinued on a loan when management believes, after considering economic and business conditions and collection efforts, that the borrower’s financial condition is such that collection of interest is doubtful or when payment of principal and interest has become ninety days past due unless the obligation is well secured and in the process of collection. Specifically, interest payments received are recognized as interest income or, if the ultimate collectability of principal is in doubt, are applied to principal. A loan is considered past due or delinquent when a contractual payment is not paid in the month it is due.
	Loans Held for Sale - Loans held for sale are carried at lower of cost or market value in the aggregate. Market value is derived from secondary market quotations for similar instruments. Net unrealized losses are recognized through a valuation allowance by charges to income.
	Allowance for Losses on Loans - An allowance for losses on loans is provided through charges to income in an amount that management believes will be adequate to absorb losses on existing loans that may become uncollectible, based on evaluations of the collectability of loans and prior loan loss experience. The allowance consists of specific and general reserve components. For individual loans that are classified as impaired, an allowance is established when the collateral value, less estimated selling costs, of the impaired loan is lower than the carrying amount of that loan. The general reserve component covers non-classified loans and is based on historical loss experience adjusted for qualitative factors.
	Loans deemed to be uncollectible are charged against the allowance for losses on loans and subsequent recoveries, if any, are credited to the allowance. The evaluations take into consideration such factors as changes in the nature and volume of the loan portfolio, overall portfolio quality, review of specific problem loans, and current economic conditions that may affect the borrowers’ ability to pay. Management believes the allowance for losses on loans is adequate. While management uses available information to estimate losses on loans, future additions to the allowance may be necessary based on changes in economic conditions, particularly in the state of Maryland. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Bank’s allowance for losses on loans. Such agencies may require the Bank to recognize additions to the allowance based on their judgments about information available to them at the time of their examination.
	In accordance with the provisions of FASB’s accounting standards codification, (“FASB ASC”) Topic 310 “Receivables,” the Bank determines and recognizes impairment of certain loans. A loan is determined to be impaired when, based on current information and events, it is probable that the Bank will be unable to collect all amounts due according to the contractual terms of the loan agreement. A loan is not considered impaired during a period of delay in payment if the Bank expects to collect all amounts due, including past-due interest. The Bank generally considers a period of delay in payment to include delinquency up to and including 90 days. The accounting codification requires that impaired loans be measured at the present value of its expected future cash flows discounted at the loan’s effective interest rate, or at the loan’s observable market price or the fair value of the collateral if the loan is collateral dependent.
	ASC Topic 310 is generally applicable for all loans except large groups of smaller-balance homogeneous loans that are evaluated collectively for impairment, including residential first and second mortgage loans and consumer installment loans. Impaired loans are therefore generally comprised of commercial mortgage real estate development and certain restructured residential loans, including residential rental investor properties.
	In addition, impaired loans are generally loans which management has placed in non-accrual status since loans are placed in non-accrual status on the earlier of the date that management determined that the collection of principal and/or interest is in doubt or the date that principal or interest is 90 days or more past due. The Bank recognized interest income for impaired loans consistent with its method for non-accrual loans. Specifically, interest payments received are recognized as interest income or, if the ultimate collectability of principal is in doubt, are applied to principal.
	Foreclosed Real Estate - Real estate acquired through foreclosure is initially recorded at the estimated fair value less estimated disposal cost. Management periodically evaluates the recoverability of the carrying value of the real estate acquired through foreclosure using estimates as previously described in Allowance for Loan Losses. In the event of a subsequent decline, management provides an additional allowance to reduce real estate acquired through foreclosure to its fair value less estimated disposal cost. Costs relating to holding such real estate are charged against income in the current period while costs relating to improving such real estate are capitalized until a saleable condition is reached.
	Loan Servicing and Mortgage Servicing Rights – The cost of mortgage servicing rights is amortized in proportion to, and over the period of, estimated net servicing revenues. Impairment of mortgage servicing rights is assessed based on the fair value of those rights. Fair values are estimated by calculating the net present values of the cash flows over the life of the loans. Impairment is determined on a loan by loan basis. The amount of impairment recognized, if any, is the amount by which the capitalized mortgage servicing rights for a loan exceeds its fair value.
	Premises and Equipment - Premises and equipment are recorded at cost. Depreciation is computed on the straight-line method, based on the useful lives of the respective assets.
	Premises and Equipment, held for sale – Premises and equipment held for sale are recorded at net realizable value. In fiscal year 2012 the Board of Directors of Baltimore County Savings Bank made a decision to close the Hamilton branch and consolidate it into the Carney Branch. This building was sold in June 2013 and the Bank recorded a gain of $114,000.
	Income Taxes - Deferred income taxes are recognized for temporary differences between the financial reporting basis and income tax basis of assets and liabilities based on enacted tax rates expected to be in effect when such amounts are realized or settled. Deferred tax assets are recognized only to the extent that is more likely than not that such amounts will be realized based on consideration of available evidence. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.
	The provisions of Accounting for Uncertainty in Income Taxes, codified within FASB ASC 740 “ Income Taxes,” prescribe a recognition threshold and measurement attribute for the financial statement recognition and measurement for a tax position taken or expected to be taken in a tax return, FASB ASC 740 also provides guidance on derecognition, classifications, interest and penalties, accounting in interim periods, disclosure and transition. Tax positions must meet a more-likely-than-not recognition threshold in order for the related tax benefit to be recognized or continue to be recognized. As of September 30, 2013, and 2012, there were no unrecognized tax benefits. The Company does not anticipate the total amount of unrecognized tax benefits to significantly change within the next 12 months. The Company recognizes interest and penalties on income tax assessments or income tax refunds, where applicable, in the financial statements as a component of its provision for income taxes. The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various state and city jurisdictions. The Company is no longer subject to federal and state income tax examinations for tax years prior to 2009.
	Transfers of Financial Assets -Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when: (1) the assets have been isolated from the Bank, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and (3) the Bank does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
	Significant Group Concentrations of Credit Risk - Most of the Bank’s activities are with customers located within the greater Baltimore metropolitan area. The Bank does not have any significant concentrations to any one industry or customer.
	Earnings Per Share - Basic per share amounts are based on the weighted average shares of common stock outstanding. Diluted earnings per share assume the conversion, exercise or issuance of all potential common stock instruments such as options, warrants and convertible securities, unless the effect is to reduce a loss or increase earnings per share. The basic and diluted weighted average shares outstanding for the years ended September 30, 2013 and 2012 are as follows:
		2013
		Income (Loss)			Shares			Per Share
		(Numerator)			(Denominator)			Amount
		( in thousands except per share data)
	Basic EPS
	Net Income available to shareholders	$	1,820			3,110		$	0.58
	Diluted EPS
	Effect of dilutive shares		—			124			(.02	)
	Net Income available to shareholders	$	1,820			3,234		$	0.56
		2012
	Basic EPS
	Net Income available to shareholders	$	1,800			3,102			$0.58
	Diluted EPS
	Effect of dilutive shares		—			96			(0.02	)
	Net Income available to shareholders	$	1,800			3,198		$	0.56
	Options to purchase 10,528 shares which were outstanding at September 30, 2013 and 60,454 shares which were outstanding September 30, 2012, were not included in the computation of diluted EPS because the effect would have been anti-dilutive.
	Statement of Cash Flows - In the statement of cash flows, cash and cash equivalents include cash, Federal Home Loan Bank of Atlanta overnight deposits, federal funds and certificates of deposit with an original maturity date less than ninety days.
	Employee Stock Ownership Plan - The Company accounts for its Employee Stock Ownership Plan (“ESOP”) in accordance with FASB’s accounting standards codification (See Note 12). Allocated ESOP shares are considered to be outstanding for the computation of EPS as they are committed to be released.
	Rabbi Trust - The Company established a rabbi trust to fund certain benefit plans. The Company accounts for these plans in accordance with FASB’s accounting standards codification guidance. Until the plan benefits are paid, creditors may make claims against the assets if the Company becomes insolvent.
	Advertising - All advertising costs are expensed as incurred.
	Share-Based Compensation - Compensation expense for awards of equity instruments is recognized on a straight-line basis over the requisite service period based on the grant date fair value estimated in accordance with the provision of Financial Accounting Standards Board (“FASB”) Accounting Standards Codifications (“ASC”) 718 “Compensation-Stock Compensation”’ Share-based compensation expense is included in Salaries and Related expenses in the consolidated statements of operations. The grant date fair value of stock options is estimated using the Black-Scholes option pricing model using assumptions for the expected option term, expected price volatility, risk-free interest rate, and expected dividend yield.
	Segment Reporting - The Company acts as an independent community financial services provider, offering traditional banking and related financial services to individuals and business customers. The Bank offers a full array of commercial and retail financial services through its branch and automated teller machine networks. This includes taking time, savings and demand deposits, making of commercial, consumer and mortgage loans, and providing other financial services.
	Management does not separately allocate expenses, including the cost of funding loan demand, between the commercial, retail and mortgage banking operations of the Bank. As such, segregated financial information is not available and segment reporting would not be meaningful.
	Guarantees - The Company does not issue any guarantees that would require liability recognition or disclosure, other than its standby letters of credit. Standby letters of credit written are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Generally, all letters of credit, when issued have expiration dates within one year, which can be renewed depending upon the circumstances of the projects’ progress. The credit risk involved in issuing letters of credit is essentially the same as those that are involved in extending loan facilities to customers. The Company generally holds collateral and/or personal guarantees supporting these commitments. The Company has $480,000 standby letters of credit as of September 30, 2013. Management believes that the proceeds obtained through a liquidation of collateral and the enforcement of guarantees would be sufficient to cover the potential amount of future payment required under the corresponding guarantees. The current amount of the liability as of September 30, 2013 for guarantees under standby letters of credit issued is not material.
	Comprehensive Income - Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gains and losses on available for sale securities net of taxes, are reported as a separate component of the equity section of the statement of financial condition, such items, along with net income, are components of comprehensive income.
	Bank Owned Life Insurance - The Company purchased single-premium life insurance policies on certain employees of the Company. Appreciation in the cash surrender value of the insurance policies is classified in non-interest income.
	Core Deposit Intangible - The Company recognized a core deposit intangible as a result of the merger with WHG Bancshares Corporation in 2002. This deposit base is assumed to decay over time as funds are withdrawn by customers. Amortization is calculated using algebraic formulas taking into account current portfolio costs and the current short term LIBOR.
	(dollars in thousands)	As of			As of
		September 30,			September 30,
		2013			2012
	Core Deposit Intangible	$	630		$	630
	Accumulated Amortization		(605	)		(593	)
	Net Balance	$	25		$	37
	Aggregate Amortization Expense
	For the year ended September 30, 2013	$	12
	For the year ended September 30, 2012		14
Estimated Amortization Expense
For the year ending September 30, 2014		12
For the year ending September 30, 2015		13
Recent Accounting Pronouncements - In February 2013 FASB issued ASU 2013-02, “Comprehensive Income (Topic 220) – Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” The objective of the new guidance is to improve the transparency of reporting reclassifications out of accumulated other comprehensive income (“OCI”) by requiring entities to present in one place information about significant amounts reclassified and, in come cases, to provide cross references to related footnote disclosures. The amendments do not change the current requirements for reporting net income or OCI, nor do they require new information to be disclosed. The amendment was applied prospectively and was effective for public entities in both interim and annual reporting periods beginning after December 15, 2012.
Recent Developments On June 13, 2013, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with F.N.B. Corporation (“FNB”), the parent company of First National Bank of Pennsylvania (“FNB Bank”). Pursuant to the Merger Agreement, the Company will merge with and into FNB (the “Merger”). Promptly following consummation of the Merger, it is expected that Baltimore County Savings Bank will merge with and into FNB Bank. In the Merger, shareholders of the Company will receive 2.080 shares (the “Exchange Ratio”) of FNB common stock for each common share of the Company they own. Outstanding Company stock options and share awards relating to Company common shares will be converted into options and share awards relating to shares of FNB common stock upon consummation of the Merger, subject to adjustments based on the Exchange Ratio. Consummation of the Merger is subject to certain conditions, including, among others, approval of the Merger by the Company’s shareholders, the receipt of all required governmental filings and regulatory approvals and expiration of applicable waiting periods, accuracy of specified representations and warranties of each party, the performance in all material respects by each party of its obligations under the Merger Agreement, effectiveness of the registration statement to be filed by FNB with the SEC to register shares of FNB common stock to be offered to Company shareholders, receipt of tax opinions, and the absence of any injunctions or other legal restraints. Currently, the Merger is expected to be completed in the first quarter of calendar 2014.
The Company and FNB have become aware of the filing of a complaint on December 16, 2013 in Circuit Court in Baltimore County, Maryland, against the Company, each of the Company’s directors, and FNB. The complaint purports to be a class action filed on behalf of the holders of Company common stock arising from certain alleged actions by the named parties in connection with the previously announced proposed merger of the Company with and into FNB. The Company and FNB believe the factual allegations in the complaint are without merit and intend to defend vigorously against the allegations in the complaint.

Investment_Securities_Availabl

Investment Securities Available for Sale	12 Months Ended
	Sep. 30, 2013
Investment Securities Available for Sale	'
	Note 2 - Investment Securities Available for Sale
	The amortized cost and estimated fair values of investment securities available for sale are as follows as of September 30, 2013 and, 2012:
	(in thousands)	Amortized		Gross		Gross			Estimated
		Cost		Unrealized		Unrealized			Fair
				Gains		Losses			Value
	Available for sale:
	30-Sep-13
	Corporate Bonds	$	4,880	$	—	$	(226	)	$	4,654
	Equity Investments		100		—		—			100
		$	4,980	$	—	$	(226	)	$	4,754
	September 30, 2012
	Corporate Bonds		4,880	$	—	$	(352	)	$	4,528
	Equity Investments		100		—		—			100
		$	4,980	$	—	$	(352	)	$	4,628
	There were no sales of available for sale investment securities during the fiscal years ended September 30, 2013 or 2012.
	The equity investment is carried at amortized cost. This represents stock owned by the Company in one local banking company.
	Below is a schedule of investment securities with unrealized losses as of September 30, 2013 and 2012 and the length of time the individual security has been in a continuous unrealized loss position:
		September 30, 2013
		Less than 12 months				12 months or more						Total
	(in thousands)	Fair		Unrealized		Fair			Unrealized			Fair		Unrealized
		Value		Losses		Value			Losses			Value		Losses
	Corporate Bonds	$	—	$	—	$	4,654		$	(226	)	$	4,654	$	(226	)
	Total temporarily impaired securities	$	—	$	—	$	4,654		$	(226	)	$	4,654	$	(226	)
		September 30, 2012
		Less than 12 months				12 months or more						Total
	(in thousands)	Fair		Unrealized		Fair			Unrealized			Fair		Unrealized
		Value		Losses		Value			Losses			Value		Losses
	Corporate Bonds	$	—	$	—	$	4,528		$	(352	)	$	4,528	$	(352	)
	Total temporarily impaired securities	$	—	$	—	$	4,528		$	(352	)	$	4,528	$	(352	)
	At September 30, 2013 and September 30, 2012 the Company had two investment securities in an unrealized loss position.
	The following is a summary of investment securities by maturity:
		September 30, 2013
	(in thousands)	Amortized		Fair
		Cost		Value
	Available for sale:
	Corporate Bonds
	Due within 12 months	$	—	$	—
	Due beyond 12 months but within five years		1,380		1,364
	Due beyond five years but within ten years		3,500		3,290
	Due beyond ten years		—		—
	Total Corporate Bonds		4,880		4,654
	Equity Investments		100		100
	Total Investment Securities	$	4,980	$	4,754

Loans_Receivable

Loans Receivable	12 Months Ended
	Sep. 30, 2013
Loans Receivable	'
	Note 3 - Loans Receivable
	Loans receivable at September 30, 2013 and 2012 consist of the following:
		September 30,
	(in thousands)	2013			2012
	Single-family residential mortgages	$	63,769		$	76,823
	Single-family rental property loans		59,272			62,111
	Commercial real estate loans		145,672			141,364
	Construction loans		25,917			21,396
	Commercial loans secured		161			71
	Commercial loans unsecured		52			60
	Commercial lease loans		—			20
	Commercial lines of credit		7,521			9,952
	Automobile loans		132			437
	Home equity lines of credit		33,443			32,840
	Other consumer loans		1,496			1,714
			337,435			346,788
	Less - undisbursed portion of loans in process		(7,966	)		(6,467	)
	- unearned interest		(1	)		(3	)
	- deferred loan origination costs and (fees)		272			(38	)
	- allowance for loans losses		(5,604	)		(5,470	)
		$	324,136		$	334,810
	Residential lending is generally considered to involve less risk than other forms of lending, although payment experience on these loans is dependent to some extent on economic and market conditions in the Bank’s lending area. Multifamily residential, commercial, construction and other loan repayments are generally dependent on the operations of the related properties or the financial condition of its borrower or guarantor. Accordingly, repayment of such loans can be more susceptible to adverse conditions in the real estate market and the regional economy.
	A significant portion of the Bank’s loans receivable include mortgage loans secured by residential and commercial real estate properties located in the State of Maryland. Loans are extended only after evaluation by management of customers’ creditworthiness and other relevant factors on a case-by-case basis. The Bank generally does not lend more than 80% of the appraised value of a property and requires private mortgage insurance on residential mortgages with loan-to-value ratios in excess of 80%. In addition, the Bank generally obtains personal guarantees of repayment from borrowers and/or others for multifamily residential, commercial and construction loans and disburses the proceeds of construction and similar loans only as work progresses on the related projects. It is the Bank’s strategy to sell most residential loan originations into the secondary market.
	Automobile loans are secured by vehicles and home equity loans are secured by subordinated liens on real estate properties. Repayments of automobile loans and home equity loans are expected primarily from the cash flows of the borrowers.
	Non-accrual loans totaled approximately $8.4 million, and $13.1 million, at September 30, 2013 and 2012, respectively. As of September 30, 2013, $2.2 million of loan loss allowances were allocated to all loans classified as impaired. At September 20, 2012, $2.0 million of loan loss allowances were allocated to all loans classified as impaired. Assets classified as troubled debt restructurings are included in nonperforming assets. The total of troubled debt restructurings are $7.2 million, of which $7.1 million are not delinquent based on their revised terms. Reporting guidance requires disclosure of these loans as non-performing even though they are current in terms of principal and/or interest payments.
	Interest income that would have been recorded under the original terms of non-accrual loans and the interest actually recognized for the years ended September 30, are summarized below:
		Years Ended September 30,
	(in thousands)	2013			2012
	Interest income that would have been recognized	$	837		$	1,065
	Interest income recognized		251			439
	Interest income not recognized	$	586		$	626
	The Bank has had, and may be expected to have in the future, banking transactions in the ordinary course of business with directors, officers, their immediate families and affiliated companies (commonly referred to as related parties), on the same terms including interest rates and collateral, as those prevailing at the time for comparable transactions with others. The following table presents a summary of the activity of loans receivable from related parties:
		Years Ended September 30,
	(in thousands)	2013			2012
	Beginning balance	$	256		$	254
	New loans		33			31
	Loan repayments		(30	)		(29	)
	Ending balance	$	259		$	256
	The Bank services loans for others. The amount of such loans serviced at September 30, 2013 and 2012 was $24.7 million and $19.8 million, respectively. At September 30, 2013 and 2012, the Bank had no loans sold with recourse.
	Custodial escrow balances maintained in connection with the foregoing loan servicing were approximately $123,000 and $216,000 at September 30, 2013 and 2012, respectively.
	The Bank is a party to financial instruments with off-balance-sheet risk made in the normal course of business to meet the financing needs of its customers. These financial instruments are standby letters of credit, lines of credit and commitments to fund mortgage loans and involve to varying degrees elements of credit risk in excess of the amount recognized in the statement of financial position. The contract amounts of those instruments express the extent of involvement the Bank has in this class of financial instruments and represents the Bank’s exposure to credit loss from nonperformance by the other party. Unless noted otherwise, the Bank does not require collateral or other security to support financial instruments with off-balance-sheet credit risk.
	Financial Instruments Whose Contract Amounts Represents Credit Risk	Contract Amount at September 30,
	(in thousands)	2013			2012
	Standby letters of credit	$	480		$	390
	Commercial lines of credit		6,356			6,670
	Home equity lines of credit		24,295			24,850
	Loan commitments, fixed rates		549			10,758
	Overdraft protection lines of credit		672			705
	Standby letters of credit are conditional commitments issued by the Bank guaranteeing performance by a customer to a third party. Those guarantees are issued primarily to support private borrowing arrangements, generally limited to real estate transactions. In most instances, standby letters of credit are collateralized. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers.
	Home equity and commercial lines of credit are loan commitments to individuals and companies and have fixed expiration dates as long as there is no violation of any condition established in the contract. The Bank evaluates each customer’s credit worthiness on a case-by-case basis.
	Rates on mortgage loan commitments for fixed rate loans ranged from 3.25% to 6.00% at September 30, 2013. There was one single family residential mortgage loan commitment for fixed rate loans at September 30, 2013. There were no single family residential mortgage loan commitments for variable rate loans. Fixed rate home equity commitments at September 30, 2013 were 2.85%. There were no fixed rate home equity loans commitments at September 30, 2012. Rates on home equity loan commitments, for variable rate loans, range from prime minus 1/2% to prime, with some having a floor of 4.0%.
	Rates on commercial loan commitments for fixed rate loans ranged from 4.75% to 6.00% and 6.16% to 6.75% at September 30, 2013 and 2012, respectively. There were no commercial loan commitments with variable rates at September 30, 2013, or September 30, 2012.
	No amount was recognized in the statement of financial condition at September 30, 2013 and 2012, as liability for credit loss nor was any liability recognized for fees received for standby letters of credit.

Disclosures_About_Credit_Quali

Disclosures About Credit Quality and the Allowance for Losses on Loans	12 Months Ended
	Sep. 30, 2013
Disclosures About Credit Quality and the Allowance for Losses on Loans	'
	Note 4 - Disclosures About Credit Quality and the Allowance for Losses on Loans
	Classes
	For purposes of determining the allowance for loan losses, the Company has segmented certain loans in the portfolio by product type. Loans are segmented into the following pools: residential real estate loans, commercial, construction, home equity loans, automobile loans and other consumer loans. The company also separates these segments into classes based on the associated risks within these segments. Commercial loans are divided into the following five classes: construction, land acquisition and development, commercial loans secured by real estate, commercial loans unsecured and leases. Residential loans are divided into two classes, residential owner occupied and residential rental properties. Each class of loan requires significant judgment to determine the estimation method that fits the credit risk characteristics of its portfolio segment. Management must use judgment in establishing additional input metrics for the modeling process. Historical loss percentages are also utilized to assist in projecting potential future losses.
	Based on credit risk assessment and management’s analysis of leading predictors of losses, additional loss multipliers are applied to loan balances. During the period management has applied additional loss estimations based on the current environmental factors, geographical concentrations, the state of the local economy and current bankruptcy rates.
	Impaired loans are reviewed individually for potential loss. In instances where loan balances exceed estimated realizable values, specific loss allocations are identified and established.
	Under our methodology for calculating the allowance for loan losses, loss rates are determined for the following loan pools: construction, residential owner occupied, residential rental loans, home equity loans, loan acquisition and development, secured commercial loans, unsecured commercial loans, leases and consumer loans. Loss rates are then applied to loan balances of these portfolio segments exclusive of loans with specific loss allocations that were reviewed individually. This methodology provides an in-depth analysis of the Bank’s portfolio and reflects the probable inherent losses within it. Reserve allocations are then reviewed and consolidated. This process is performed on a quarterly basis.
	During the twelve months ended September 30, 2012, we modified our loss reserve assessment approach to expand analysis of loss rates from a period of the previous one year to the prior two years on a rolling quarter-to-quarter basis. The result was then annualized and applied to loan pools specified above. Also during the twelve months ended September 30, 2012, the Company isolated a segment of the loan portfolio, residential rental loans loans, to perform more detailed analysis for potential losses.
	A two year look back period of charge-off experience is considered to more reasonably approximate current loss exposure within the portfolio. As mentioned above, we also employed a more detailed approach in reviewing residential rental loans during the twelve months ended September 30, 2012. Loss rates for this category have been noticeably higher than other types of loans. Additionally, geographic concentration is considered to be more of a risk factor for this type of product. Loans within this category are segregated by internal risk ratings, with higher reserves allocated as risk ratings reflect more potential for loss. This same approach was used during the twelve months ended September 30, 2013.
	The Allowance for Losses and Recorded Investment in loans for the twelve months ended September 30, 2013 are as follows:
	Allowance for Losses on Loans
	For the period ended September 30, 2013
	(Dollars in thousands)
			Residential			Residential			Commercial			Construction			Home			Automobile		Other			Total
						Rental									Equity					Consumer
			Loans			Loans			Loans			Loans			Loans			Loans		Loans			Loans
	Twelve Months ended September 30, 2013
	Allowance for losses on loans:
	Beginning Balance		$	140		$	2,232		$	1,477		$	1,492		$	119		$	—	$	10			$5,470
	Charge-Offs			—			(408	)		—			(636	)		—			—		(4	)		(1,048	)
	Recoveries			—			—			8			—			—			—		74			82
	Provisions			(74	)		719			334			245			(44	)		—		(80	)		1,100
	Ending Balance		$	66		$	2,543		$	1,819		$	1,101		$	75		$	—	$	—			$5,604
	Ending balance individually evaluated for impairment		$	1,454		$	7,803		$	8,499		$	2,994		$	265		$	—	$	—			$21,015	(1)
	Ending balance collectively evaluated for impairment		$	62,315		$	51,469		$	144,907		$	22,923		$	33,178		$	132		1,496			316,420	(1)
	Ending Allowance balance for loans individually evaluated for impairment		$	—		$	1,441		$	118		$	634		$	—		$	—		—			$2,193
	Ending Allowance balance for loans collectively evaluated for impairment		$	66		$	1,102		$	1,701		$	467		$	75		$	—	$	—			$3,411
	-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowance for loan losses.
	The Allowance for Losses on Loans and Recorded Investment in loans for the twelve months ended September 30, 2012 are as follows:
	Allowance for Losses on Loans
	For the period ended September 30, 2012
	(Dollars in thousands)
			Residential			Residential			Commercial			Construction			Home			Automobile		Other			Total
						Rental									Equity					Consumer
			Loans			Loans			Loans			Loans			Loans			Loans		Loans			Loans
	Twelve Months ended September 30, 2012
	Allowance for losses on Loans:
	Beginning Balance		$	205		$	1,595		$	1,513		$	1,267		$	168		$	—	$	20		$	4,768
	Charge-Offs			(9	)		(513	)		(35	)		—			—			—		(14	)		(571	)
	Recoveries			1			5			16			—			—			—		51			73
	Provisions			(57	)		1,145			(17	)		225			(49	)		—		(47	)		1,200
	Ending Balance		$	140		$	2,232		$	1,477		$	1,492		$	119		$	—	$	10		$	5,470
	Ending balance individually evaluated for impairment		$	1,163			7,135		$	5,560		$	8,267		$	210		$	—	$	—		$	22,335	(1)
	Ending balance collectively evaluated for impairment		$	75,660		$	54,976		$	145,907		$	13,129		$	32,630		$	437	$	1,714		$	324,453	(1)
	Ending Allowance balance for loans individually evaluated for impairment		$	—		$	840		$	111		$	1,071		$	—		$	—		—		$	2,022
	Ending Allowance balance for loans collectively evaluated for impairment		$	140		$	1,392		$	1,366		$	421		$	119		$	—	$	10		$	3,448
	-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowance for loan losses.
	Credit Quality Indicators
	The Company has several credit quality indicators to manage credit risk in an ongoing manner. The Company’s primary credit quality indicators are to use an internal credit risk rating system that categorizes loans and leases into pass, special mention, or classified categories. Credit risk ratings are applied individually to those classes of loans and leases that have significant or unique credit characteristics that benefit from a case-by-case evaluation. These are typically loans and leases to businesses or individuals in the classes which comprise the commercial portfolio segment. Groups of loans and leases that are underwritten and structured using standardized criteria and characteristics, such as statistical models (e.g., credit scoring or payment performance), are typically risk rated and monitored collectively. These are typically loans and leases to individuals in the classes which comprise the consumer portfolio segment.
	The following are the definitions of the Company’s credit quality risk ratings:
	Pass
	Asset is of sufficient quality to not warrant any mention whatsoever.
	Transitional
	Loans and other credit extensions bearing this grade exhibit some or all the characteristics of a loan graded a Pass and one or more of the following traits: higher LTV’s than expected for loans within their loan type, industry or economic issues that might cause future problems, the potential of loan default, declining financial trends that are emerging, reduced liquidity, history of late payments, failure to provide requested financial information, or deteriorating value of collateral. Loans in this category may exhibit signs of weakness as a going concern, e.g. poor management of the company; change in ownership/management; negative economic impact; or an adverse affect in the Bank’s collateral position. While no specific loss amount may be anticipated at this point there is sufficient concern regarding these loans, and closer monitoring is required by the Loan Officer and other management personnel. Loans in this category will be discussed quarterly at the Watch Committee meeting.
	Special Mention
	These credit facilities have potential developing weaknesses that deserve extra attention from management. This classification may be warranted if a developing weakness is evident that is associated with the ability of the borrower to repay. If a developing weakness is not corrected or mitigated, there may be deterioration in the ability of the borrower to repay the bank’s debt in the future. This grade should not be assigned to loans that bear certain peculiar risks normally associated with the type of financing involved, unless circumstances have caused the risk to increase to a level higher than would have been acceptable when the credit was originally approved.
	Substandard
	Loans and other credit extensions bearing this grade are considered to be inadequately protected by the current net worth and debt service capacity of the borrower or of any pledged collateral. These obligations, even if apparently protected by collateral value, have well-defined weaknesses related to adverse financial, managerial, economic, market, or political conditions that have clearly jeopardized repayment of principal and interest as originally intended. Furthermore, there is the possibility that some future loss will be sustained by the bank if such weaknesses are not corrected. Clear loss potential, however, does not have to exist in any individual assets classified as substandard.
	Doubtful
	Loans and other credit extensions classified as doubtful have all the weaknesses inherent in those substandard with the added characteristic that the severity of the weaknesses makes collection or liquidation in full highly questionable or improbable based upon currently existing facts, conditions and values. The probability of some loss is extremely high, but because of certain important and reasonably specific factors, the amount of loss cannot be determined. Such pending factors could include merger or liquidation, additional capital injection, refinancing plans, or perfection of liens on additional collateral. Loans in this classification should be placed in non-accrual status, with collections applied to principal on the bank’s books.
	Loss
	Loans in this classification are considered uncollectible and cannot be justified as a viable asset of the Bank. This classification does not mean the loan has absolutely no recovery value, but that it is neither practical nor desirable to defer writing off this loan even though partial recovery may be obtained in the future. A portion of a loan may also be assigned this rating since the Bank may determine that the balance of the loan is collectable.
	The risk ratings of loans as of September 30, 2013 and 2012 are as follows:
	September 30, 2013
(Dollars in thousands)
		Residential			Residential			Commercial			Construction			Home			Automobile		Other
					Rental									Equity					Consumer
		Loans			Loans			Loans			Loans			Loans			Loans		Loans			Total
Grade
Pass (2)		$	61,533		$	50,531		$	139,171		$	21,523		$	32,534		$	132	$	1,461		$	306,885
Special Mention			782			991			5,736			1,400			644			—		35			9,588
Substandard			1,454			7,750			8,499			2,994			265			—		—			20,962
Doubtful			—			—			—			—			—			—		—			—
Loss			—			—			—			—			—			—		—			—
Total (1)		$	63,769		$	59,272		$	153,406		$	25,917		$	33,443		$	132	$	1,496		$	337,435
September 30, 2012
(Dollars in thousands)
		Residential			Residential			Commercial			Construction			Home			Automobile		Other
					Rental									Equity					Consumer
		Loans			Loans			Loans			Loans			Loans			Loans		Loans			Total
Grade
Pass (2)		$	76,166		$	49,817		$	141,413		$	13,129		$	32,840		$	437	$	1,714		$	315,516
Special Mention			119			3,824			2,465			—			—			—		—			6,408
Substandard			538			8,470			7,589			8,267			—			—		—			24,864
Doubtful			—			—			—			—			—			—		—			—
Loss			—			—			—			—			—			—		—			—
Total (1)		$	76,823		$	62,111		$	151,467		$	21,396		$	32,840		$	437	$	1,714		$	346,788
-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loans origination fees and costs and allowance for loan losses.
-2	Transitional loans are included in the Pass category for classification purposes.
Single-Family Residential Real Estate Lending. The Bank historically has been and continues to be an originator of single-family, residential real estate loans in its market area. The Bank has never participated in the origination of sub-prime lending and, accordingly, has no direct exposure to this type of lending within its loan portfolio. The Bank originates fixed-rate mortgage loans at competitive interest rates. Due to interest rate risk considerations, the Bank has employed a strategy of selling most fixed-rate single-family residential mortgage loans originated into the secondary market.
A small portion of the Bank’s single-family mortgage loans carry adjustable rates. After the initial term, the rate adjustments on the Bank’s adjustable-rate loans are indexed to a rate which adjusts per loan terms based upon changes in an index based on the weekly average yield on U.S. Treasury securities adjusted to a constant comparable maturity of one year, as made available by the Federal Reserve Board. The interest rates on most of the Bank’s adjustable-rate mortgage loans are adjusted once a year, and the Bank offers loans that have an initial adjustment period of one, three or five years. The maximum adjustment is 2% per adjustment period with a maximum aggregate adjustment of 6% over the life of the loan. All of the Bank’s adjustable-rate loans require that any payment adjustment resulting from a change in the interest rate be sufficient to result in full amortization of the loan by the end of the loan term and, thus, do not permit any of the increased payment to be added to the principal amount of the loan, known as “negative amortization.”
The retention of adjustable-rate loans in the Bank’s portfolio helps reduce the Bank’s exposure to increases in prevailing market interest rates. However, there are unquantifiable credit risks resulting from potential increases in costs to borrowers in the event of upward repricing of adjustable-rate loans. It is possible that during periods of rising interest rates, the risk of default on adjustable-rate loans may increase due to increases in interest costs to borrowers. Further, although adjustable-rate loans allow the Bank to increase the sensitivity of its interest-earning assets to changes in interest rates, the extent of this interest sensitivity is limited by the initial fixed-rate period before the first adjustment and the lifetime interest rate adjustment limitations. Accordingly, there can be no assurance that yields on the Bank’s adjustable-rate loans will fully adjust to compensate for increases in the Bank’s cost of funds. Finally, adjustable-rate loans increase the Bank’s exposure to decreases in prevailing market interest rates, although decreases in the Bank’s cost of funds tend to offset this effect.
Single-Family Rental Property Loans. The Bank also offers single-family residential mortgage loans secured by properties that are not owner-occupied, although management has decided to limit future origination volume for this loan product. Single-family residential mortgage loans secured by nonowner-occupied properties are made on a five year fixed-rate or an adjustable-rate basis and carry interest rates above the rates charged on comparable loans secured by owner-occupied properties. The maximum term on such loans is generally 5 years with amortizations up to 25 years.
Commercial Real Estate Lending. The Bank’s commercial real estate loan portfolio includes loans to finance the acquisition of office buildings, churches, commercial office condominiums, shopping centers, hospitality, and commercial and industrial buildings. Such loans generally range in size from $100,000 to $5 million. Commercial real estate loans are originated on a fixed-rate or adjustable-rate basis with terms of 5 to 10 years and with amortizations of up to 25 years.
Commercial real estate lending entails significant additional risks as compared with single-family residential property lending. Commercial real estate loans typically involve larger loan balances to single borrowers or groups of related borrowers. The payment experience on such loans typically is dependent on the successful operation of the real estate project, retail establishment or business. These risks can be significantly impacted by supply and demand conditions in the market for office and retail space and, as such, may be subject to a greater extent to adverse conditions in the economy generally. To minimize these risks, the Bank generally limits itself to its market area or to borrowers with which it has prior experience or who are otherwise known to the Bank. It is the Bank’s policy generally to obtain annual financial statements of the business of the borrower or the project for which commercial real estate loans are made. In addition, in the case of commercial real estate loans made to a legal entity, the Bank seeks, whenever possible, to obtain personal guarantees and annual financial statements of the principals of the legal entity.
Construction Lending. A portion of the Bank’s construction loans are originated for the construction of owner-occupied, single-family dwellings in the Bank’s primary market area. Residential construction loans are offered primarily to individuals building their primary or secondary residence. Generally, loans to owner/occupants for the construction of owner-occupied, single-family residential properties are originated in connection with the permanent loan on the property and have a construction term of up to 12 months. Such loans are offered on fixed rate terms. Interest rates on residential construction loans made to the owner/occupant have interest rates during the construction period equal to the same rate on the permanent loan selected by the customer. Interest rates on residential construction loans to builders are set at the prime rate plus a margin of between 0% and 1.5%, typically with interest rate floors. Interest rates on commercial construction loans are based on the prime rate plus a negotiated margin of between 0% and 1.5% and adjust monthly, typically with interest rate floors with construction terms generally not exceeding 18 months. Advances are made on a percentage of completion basis. Prior to making a commitment to fund a loan, the Bank requires both an appraisal of the property by appraisers approved by the Board of Directors and a study of projected construction costs. The Bank also reviews and inspects each project at the commencement of construction and as needed prior to disbursements during the term of the construction loan.
On occasion, the Bank makes acquisition and development loans to local developers to acquire and develop land for sale to builders who will construct single-family residences. Acquisition and development loans, which are considered by the Bank to be construction loans, are made at a rate that adjusts monthly, based on the prime rate plus a negotiated margin, typically with interest rate floors for terms of up to three years. Interest only is paid during the term of the loan, and the principal balance of the loan is paid down as developed lots are sold to builders. Generally, in connection with acquisition and development loans, the Bank issues a letter of credit to secure the developer’s obligation to local governments to complete certain work. If the developer fails to complete the required work, the Bank would be required to fund the cost of completing the work up to the amount of the letter of credit. Letters of credit generate fee income for the Bank but create additional risk.
Construction financing generally is considered to involve a higher degree of risk of loss than long-term financing on improved, occupied real estate. Risk of loss on a construction loan is dependent largely upon the accuracy of the initial estimate of the property’s value at completion of construction or development and the estimated cost (including interest) of construction. During the construction phase, a number of factors could result in delays and cost overruns. If the estimate of construction costs proves to be inaccurate and the borrower is unable to meet the Bank’s requirements of putting up additional funds to cover extra costs or change orders, then the Bank work with the customer to resolve the financial issue. The Bank has sought to minimize this risk by limiting construction lending to qualified borrowers (i.e., borrowers who satisfy all credit requirements and whose loans satisfy all other underwriting standards which would apply to the Bank’s permanent mortgage loan financing for the subject property) in the Bank’s market area. On loans to builders, the Bank works only with selected builders and carefully monitors the creditworthiness of the builders.
Commercial Lines of Credit. The Bank provides commercial lines of credit to businesses within the Bank’s market area. These loans are secured by business assets, including real property, equipment, automobiles and consumer leases. Generally, all loans are further personally guaranteed by the owners of the business. The commercial lines have adjustable interest rates tied to the prime rate, typically with interest rate floors and are offered at rates from prime plus 0% to prime plus 3.5%, typically with interest rate floors.
Consumer Lending. The consumer loans currently in the Bank’s loan portfolio consist of automobile loans, home equity lines of credit and loans secured by savings deposits.
Automobile loans are secured by both new and used cars and, depending on the creditworthiness of the borrower, may be made for up to 110% of the “invoice price” or clean “black book” value, whichever is lower, or, with respect to used automobiles, the loan values as published by a wholesale value listing utilized by the automobile industry. Automobile loans are made directly to the borrower-owner. New and used cars are financed for a period generally of up to six years, or less, depending on the age of the car. Collision insurance is required for all automobile loans. The Bank also maintains a blanket collision insurance policy that provides insurance for any borrower who allows their insurance to lapse.
The Bank originates second mortgage loans and home equity lines of credit. Second mortgage loans are made at fixed rates and for terms of up to 15 years. The Bank’s home equity lines of credit currently have adjustable interest rates tied to the prime rate. The Bank is currently offering a fixed promotional rate of 1.99% for the first 12 months of the loan term, then it converts to prime rate minus  1⁄4% with a floor of 4%. The interest rate may not adjust to a rate higher than 24%. The home equity lines of credit require monthly payments until the loan is paid in full, with a loan term not to exceed 30 years. The minimum monthly payment is the outstanding interest. Home equity lines of credit are secured by subordinate liens against residential real property. The Bank requires that fire and extended coverage casualty insurance (and, if appropriate, flood insurance) be maintained in an amount at least sufficient to cover its loan.
The Bank makes savings account loans for up to 90% of the depositor’s savings account balance. The interest rate is normally 3.0% above the rate paid on the related savings account, and the account must be pledged as collateral to secure the loan. Interest generally is billed on a quarterly basis.
Consumer lending usually affords the Bank the opportunity to earn yields higher than those obtainable on single-family residential lending. However, consumer loans entail greater risk than residential mortgage loans, particularly in the case of loans which are unsecured or secured by rapidly depreciable assets. Repossessed collateral for a defaulted consumer loan may not provide an adequate source of repayment of the outstanding loan balance as a result of the greater likelihood of damage, loss or depreciation. The remaining deficiency often does not warrant further substantial collection efforts against the borrower. In addition, consumer loan collections are dependent on the borrower’s continuing financial stability, and thus are more likely to be adversely affected by events such as job loss, divorce, illness or personal bankruptcy.
Impaired loans for the twelve months ended September 30, 2013 are as follows:
Impaired Loans
As of September 30, 2013
(Dollars in thousands)
		Recorded			Unpaid Principal			Related
		Investment			Balance			Allowance
Loans without specific valuation allowances:
Residential Loan		$	1,454		$	1,454		$	—
Residential Rental Loans			1,296			1,296			—
Commercial Loans			6,897			6,897			—
Construction Loans			—			—			—
Home Equity Loans			265			265			—
Consumer Loans			—			—			—
Other Loans			—			—			—
Total		$	9,912		$	9,912		$	—
Loans with specific allowance recorded:
Residential Loans		$	—		$	—		$	—
Residential Rental Loans			6,507			6,507			1,441
Commercial Loans			1,602			1,602			118
Construction Loans			2,994			2,994			634
Home Equity Loans			—			—			—
Consumer Loans			—			—			—
Other Loans			—			—			—
Total		$	11,103		$	11,103		$	2,193
Impaired loans for the twelve months ended September 30, 2012 are as follows:
Impaired Loans
As of September 30, 2012
(Dollars in thousands)
		Recorded			Unpaid Principal			Related
		Investment			Balance			Allowance
Loans without specific valuation allowances:
Residential Loan		$	1,163		$	1,163		$	—
Residential Rental Loans			2,123			2,123			—
Commercial Loans			3,925			3,925			—
Construction Loans			2,775			2,775			—
Home Equity Loans			210			210			—
Consumer Loans			—			—			—
Other Loans			—			—			—
Total		$	10,196		$	10,196		$	—
Loans with specific allowance recorded:
Residential Loans		$	—		$	—		$	—
Residential Rental Loans			5,012			5,012			840
Commercial Loans			1,635			1,635			111
Construction Loans			5,492			5,492			1,071
Home Equity Loans			—			—			—
Consumer Loans			—			—			—
Other Loans			—			—			—
Total		$	12,139		$	12,139		$	2,022
The following presents information related to the average recorded investment and interest income recognized on impaired loans for the twelve months ended September 30, 2013 and September 30, 2012:
		Twelve Months Ended						Twelve Months Ended
		30-Sep-13						30-Sep-12
(dollars in thousands)		Average			Interest			Average			Interest
		Recorded			Income			Recorded			Income
		Investment			Recognized			Investment			Recognized
Loans without specific valuation allowances:
Residential Loans		$	1,484		$	73		$	1,174		$	64
Residential Rental Loans			1,298			—			2,125			51
Commercial Loans			7,037			342			3,993			105
Construction Loans			—			—			2,988			142
Home Equity Loans			265			8			212			6
Consumer Loans			—			—			—			—
Other Loans			—			—			—			—
Total		$	10,084		$	423		$	10,492		$	368
Loans with specific allowance recorded:
Residential Loans		$	—		$	—		$	—		$	—
Residential Rental Loans			6,498			327			5,155			288
Commercial Loans			1,640			94			1,669			96
Construction Loans			2,994			127			5,494			153
Home Equity Loans			—			—			—			—
Consumer Loans			—			—			—			—
Other Loans			—			—			—			—
Total		$	11,132		$	548		$	12,318		$	537
-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowances for loan losses.
Past due loans as of September 30, 2013 and 2012 are as follows:
Credit Quality Information
Age Analysis of Past Due Loans
As of September 30, 2013
		30-59 Days			60-89			Non-Accrual			Total			Current			Total Loans		Non-			Loans
		past due			Days past						past due								Accrual			Greater than
					due						and Non-Accrual								Loans that			90 days and
																			are Current			Accruing
Residential Loans		$	753			89			718			1,560			62,209			63,769		347		$	—
Residential Rental Loans			—			—			3,013			3,013			56,259			59,272		792			—
Commercial Loans			—			—			1,573			1,573			151,833			153,406		378			—
Construction Loans			—			—			2,994			2,994			22,923			25,917		2,994			—
Home Equity Loans			381			—			142			523			32,920			33,443		82			—
Automobile Loans			—			—			—			—			132			132		—			—
Other Loans			2			35			—			37			1,459			1,496		—			—
Total (1)		$	1,136			124			8,440			9,700			327,735			337,435		4,593		$	—
Credit Quality Information
Age Analysis of Past Due Loans
As of September 30, 2012
		30-59 Days			60-89			Non-Accrual			Total			Current			Total Loans		Non-			Loans
		past due			Days past						past due								Accrual			Greater than
					due						and Non-Accrual								Loans that			90 days and
																			are Current			Accruing
Residential Loans		$	360		$	82		$	472		$	914		$	75,909		$	76,823	$	—		$	—
Residential Rental Loans			180			340			2,128			2,648			59,463			62,111		741
Commercial Loans			—			—			2,994			2,994			148,473			151,467		1,311			—
Construction Loans			—			—			7,551			7,551			13,845			21,396		294			—
Home Equity Loans			119			81			—			200			32,640			32,840		—			—
Automobile Loans			—			—			—			—			437			437		—			—
Other Loans			3			—			—			3			1,711			1,714		—			—
Total (1)		$	662		$	503		$	13,145		$	14,310		$	332,478		$	346,788	$	2,346		$	—
-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowances for loan losses.
Nonperforming Loans and Other Problem Assets. It is management’s policy to continually monitor its loan portfolio to anticipate and address potential and actual delinquencies. When a borrower fails to make a payment on a loan, the Bank takes immediate steps to have the delinquency cured and the loan restored to current status. Loans which are past due 15 days incur a late fee of 5% of principal and interest due. As a matter of policy, the Bank will send a late notice to the borrower after the loan has been past due 15 days and again after 30 days. If payment is not promptly received, the borrower is contacted again, and efforts are made to formulate an affirmative plan to cure the delinquency. Generally, after any loan is delinquent 90 days or more, formal legal proceedings are commenced to collect amounts owed. In the case of automobile loans, late notices are sent after loans are ten days delinquent, and the collateral is seized after a loan is delinquent 60 days. Repossessed cars subsequently are sold at auction.
Loans generally are placed on nonaccrual status if the loan becomes past due more than 90 days, except in instances where in management’s judgment there is no doubt as to full collectability of principal and interest, or management concludes that payment in full is not likely. Consumer loans are generally charged-off, or any expected loss is reserved for, after they become more than 120 days past due. All other loans are charged-off, or any expected loss is reserved for, when management concludes that they are uncollectible.
Real estate acquired by the Bank as a result of foreclosure is classified as foreclosed real estate until such time as it is sold. When such property is acquired, it is initially recorded at the lower of cost or estimated fair value and subsequently at the lower of book value or fair value less estimated costs to sell. Costs relating to holding such real estate are charged against income in the current period, while costs relating to improving such real estate are capitalized until a saleable condition is reached. Any required write-down of the loan to its fair value less estimated selling costs upon foreclosure is charged against the allowance for loan losses.
Charge-off Policies
The Company’s loan charge-off policies are as follows:
When loans demonstrate some form of weakness or become 90 days delinquent the Bank performs an analysis to determine if a loss is expected. Loans are generally reserved down to the fair value of collateral securing the asset, less estimated cost to sell, when management judges the asset to be impaired, repayment is deemed to be protracted beyond reasonable time frames, the asset has been classified by either the internal loan review process or external examiners, or when the borrower has filed bankruptcy and the loss becomes evident based on a lack of assets. Once foreclosure takes place, or when foreclosure is imminent, specific reserves are charged-off and the asset is transferred to Foreclosed Real Estate based upon its estimated fair value less estimated disposal cost.
Loans on Nonaccrual Status
(Dollars in Thousands)
		September 30,			September 30,
		2013			2012
With no related allowance recorded:
Residential Loans		$	718		$	472
Residential Rental Loans			1,296			2,039
Commercial Loans			1,573			2,994
Constructions Loans			—			4,557
Home Equity Loans			—			—
Automobile Loans			—			—
Other Loans			—			—
		$	3,587		$	10,062
With an allowance recorded:
Residential Loans		$	—		$	—
Residential Rental Loans			1,717			89
Commercial Loans			—			—
Constructions Loans			2,994			2,994
Home Equity Loans			142			—
Automobile Loans			—			—
Other Loans			—			—
		$	4,853		$	3,083
Total Nonaccrual Loans		$	8,440	(1)	$	13,145	(1)
-1	Includes Troubled Debt Restructurings (TDR’s) of $1.2 million and $700,000 at September 30, 2013 and 2012, respectively, which were not delinquent. Reporting guidance requires disclosure of these loans as nonaccrual even though they may be current in terms of principal and interest payments. As of September 30, 2013 and 2012, the Company had total TDR’s of $7.2 million and $9.3 million, respectively.
The following schedule represents new modifications added as TDR’s during the fiscal years ended September 30, 2013 and 2012, respectively:
Modifications
During periods ended September 30, 2013 and 2012
		2013									2012
		Number of			Pre-			Post-			Number of			Pre-			Post-
		Contracts			Modification			Modification			Contracts			Modification			Modification
					Outstanding			Outstanding						Outstanding			Outstanding
					Recorded			Recorded						Recorded			Recorded
					Investments			Investments						Investments			Investments
Troubled Debt Restructurings
Residential-Prime			5		$	1,232		$	1,232			1		$	90		$	90
Commercial			—			—			—			5			2,449			2,449
Construction			—			—			—			—			—			—
Consumer-Other			—			—			—			—			—			—
Finance leases			—			—			—			—			—			—
Troubled Debt Restructurings are considered to be in default after 90 days of non-payment. During the fiscal year ended September 30, 2013 no TDR’s defaulted. During the fiscal year ended September 30, 2012 no TDR’s defaulted.
Loans identified as Troubled Debt Restructurings are also included as nonperforming assets. TDR’s are represented by borrowers experiencing some form of financial difficulty, resulting in the Bank granting a concession as part of a loan modification. Loans modified as TDR’s were primarily comprised of loans for which payments were either deferred or reduced. Reporting guidance requires disclosure of these loans as nonperforming even though they may be current in terms of principal and interest payments. As of September 30, 2013, $7.2 million in TDR’s were included in non performing loans, $7.1 million of which were not delinquent.
As previously stated, TDR’s are included as nonperforming assets, although payments may be current in conjunction with modified loan terms. Typical loan modifications include lowering interest rates, deferring payments or extending repayment terms. As of September 30, 2013 specific loan loss reserves on TDR’s totaled $1.1 million.

MortgageBacked_Securities_Avai

Mortgage-Backed Securities Available for Sale	12 Months Ended
	Sep. 30, 2013
Mortgage-Backed Securities Available for Sale	'
	Note 5 – Mortgage-Backed Securities Available for Sale
	The amortized cost and estimated fair values of mortgage-backed securities available for sale are as follows as of September 30, 2013 and 2012:
	(in thousands)	Amortized			Gross			Gross			Estimated
		Cost			Unrealized			Unrealized			Fair
					Gains			Losses			Value
	Available for sale:
	September 30, 2013
	GNMA certificates	$	3,313		$	71		$	—		$	3,384
	Private label collateralized mortgage obligations		5,542			—			(928	)		4,614
	Collateralized mortgage obligations		188,426			399			(7,000	)		181,825
	FNMA certificates		22,168			492			(620	)		22,040
	FHLMC participating certificates		8,194			234			(241	)		8,187
		$	227,643		$	1,196		$	(8,789	)	$	220,050
	September 30, 2012
	GNMA certificates	$	3,416		$	1		$	—		$	3,417
	Private label collateralized mortgage obligations		11,259			10			(2,235	)		9,034
	Collateralized mortgage obligations		178,948			3,781			—			182,729
	FNMA certificates		11,690			840			—			12,530
	FHLMC participating certificates		5,403			450			—			5,853
		$	210,716		$	5,082		$	(2,235	)	$	213,563
	During the fiscal year ended September 30, 2013 there were 17 available for sale CMO’s sold, for $39.3 million, at a gross gain of $658,000 and one private label CMO sold for $3.4 million with a loss of $589,000, for a net gain of $69,000. During the year ended September 30, 2012 there was one sale of an available for sale mortgage-backed security. The security was sold for $1.2 million at a loss of $6,000.
	Below is a schedule of mortgage-backed securities available for sale with unrealized losses as of September 30, 2013 and 2012 and the length of time the individual security has been in a continuous unrealized loss position.
		September 30, 2013
		Less than 12 months						12 months or more						Total
	(in thousands)	Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
		Value			Losses			Value			Losses			Value		Losses
	Private label collateralized mortgage obligations	$	875		$	(2	)	$	3,739			(926	)	$	4,614	$	(928	)
	Collateralized mortgage obligations		161,504			(7,000	)		—			—			161,504		(7,000	)
	FNMA Certificates		13,862			(620	)		—			—			13,862		(620	)
	FHLMC Certificates		4,592			(241	)		—		$	—			4,592		(241	)
	Total temporarily impaired securities	$	180,833		$	(7,863	)	$	3,739		$	(926	)	$	184,572	$	(8,789	)
		September 30, 2012
		Less than 12 months						12 months or more						Total
	(in thousands)	Fair			Unrealized			Fair			Unrealized			Fair		Unrealized
		Value			Losses			Value			Losses			Value		Losses
	Private label collateralized mortgage obligations	$	—		$	—		$	7,673		$	(2,235	)	$	7,673	$	(2,235	)
	Total temporarily impaired securities	$	—		$	—		$	7,673		$	(2,235	)	$	7,673	$	(2,235	)
	At September 30, 2013 and September 30, 2012 the Company had 68 and two mortgage-backed securities in unrealized loss positions, respectively.
	During the fiscal year ended September 30, 2013 we determined that, based on our most recent estimate of cash flows, there was no additional other-than-temporary-impairement (“OTTI”) charge offs required. During the twelve months ended June 30, 2013, one private label collateralized mortgage obligations was sold for $3.4 million, with a loss of $589,000. During the fiscal year ended September 30, 2012, we determined that, based on our most recent estimate of cash flows, an additional OTTI had occurred for $370,000. At September 30, 2013, we had $928,000 of gross unrealized losses related to private label collateralized mortgage obligations with an amortized cost of $5.5 million as of that date. These securities contain mortgages with Alt-A characteristics. Gross unrealized losses for the Company’s private label collateralized mortgage obligations were approximately $2.2 million as of September 30, 2012. We do not intend to sell, nor is it more likely than not we will be required to sell these securities before maturity or recovery. If in the future it is determined that future declines in market values or credit losses with respect to these or any other securities are other-than-temporary, the Company would be required to recognize additional losses in its Consolidated Statement of Operations. Under guidance for recognition and presentation of other-than-temporary-impairments, the amount of other-than-temporary-impairment that is recognized through earnings is determined by comparing the present value of the expected cash flows to the amortized cost of the security. The discount rate used to determine the credit loss is the expected book yield on the security.
	The following shows the activity in “OTTI” related to credit losses for twelve months ended September 30:
		Twelve Months Ended
		September 30
		2013			2012
	Balance at Beginning of Period	$	733		$	400
	Additional OTTI taken for credit losses		—			370
	Charge-offs due to sale		(332	)		—
	Charge-offs due to payment shortages		(158	)		(37	)
	Balance at End of Period	$	243		$	733
	The Company engages the service of independent third party valuation professionals to analyze the OTTI status of the non-agency mortgage-backed securities. The OTTI methodology is formulated within “FASB ASC.” The valuation is meant to be “Level Three” pursuant to FASB ASC – Topic 820 – Fair Value Measurements and Disclosures. As part of the valuation process and OTTI determination, assumptions related to prepayment, default and loss severity on the collateral supporting the non-agency mortgage-backed securities are input into an industry standard valuation model.
	Prepayment Assumptions
	Estimates of prepayment speeds begins with the prepayment rates provided by the Securities Industry & Financial Markets Association (SIFMA) as of the valuation date to approximate a measure of the borrowers’ incentive to prepay based on market interest rates. In order to incorporate the borrowers’ ability to prepay, we then make adjustments to the base rate to reflect the borrowers’ ability to qualify for a new loan based on their credit. We also make adjustments based on the location of the property to capture the appreciation or depreciation by MSA and thus reflect the likelihood the property will appraise at an amount sufficient to repay the existing loan. These adjustments factor prepay speeds down as credit quality and home prices deteriorate, reflecting the diminished ability to refinance.
	In addition, assumptions are based on evaluation of the conditional prepayment rates (CPR) and conditional repayment rates (CRR) over a 1 month, 3 month, 6 month, 1 year and lifetime basis- to the extent these values are provided by the servicer and forecasts from other industry experts.
	Default Rates
	Estimates for the conditional default rate (“CDR”) vectors are based on the status of the loans at the valuation date – current, 30-59 days delinquent, 60-89 days delinquent, 90+ days delinquent, foreclosure or REO – and proprietary loss migration models (e.g. percentage of 30 day delinquents that will ultimately migrate to default, percentage of 60 day delinquents that will ultimately migrate to default, etc.). The model assumes that the 60 day plus population will move to repossession inventory subject to our loss migration assumptions and liquidate over the next 24 months. Defaults vector from month 25 to month 36 to the month 37 CDR value and ultimately vector to zero over an extended period of time of at least 15 years. Default assumptions are benchmarked to the recent results experienced by major servicers of non-Agency MBS for securities with similar attributes and forecasts from other industry experts and industry research.
	Loss Severity
	Estimates for loss severity are based on the initial loan to value ratio, the loan’s lien position, private mortgage insurance proceeds available (if any), and the estimated change in the price of the property since origination. The historical change in the value of the property is estimated using the Housing Pricing Indices by Metropolitan Statistical Area (“MSA”) produced by the Federal Housing Finance Agency (“FHFA”). Estimates for future changes in the prices of the residences collateralizing the mortgages is based on the Case Shiller forecasts and forecasts by MSA provided by the Housing Predictor website.
	The loss severity assumption is static for one month then decreases monthly based on future market appreciation. The annual market appreciation assumption is 3.50% after 1 month. The loss severity is subject to a floor value of 23.00%.
	Loss severity is benchmarked to the recent results of the loan collateral supporting the securities and the results experienced by major servicers of non-agency mortgage-backed-securities for securities with similar attributes.
	The prepayment, default and loss severity assumptions result in forecasted cumulative loss rates. These cumulative loss rates are benchmarked to the projected cumulative losses by product, by year of origination, released by other industry experts.
	The collateral cash flows that result from the prepayment, default and loss severity assumptions are applied to securities supporting the collateral by priority based upon the cash flow waterfall rules provided in the prospectus supplement. The cash flows are then discounted at the appropriate interest rate in order to determine if the impairment on a security is other than temporary.

Premises_and_Equipment_net

Premises and Equipment, net	12 Months Ended
	Sep. 30, 2013
Premises and Equipment, net	'
	Note 6 – Premises and Equipment, net
	Premises and equipment at September 30, 2013 and 2012 are summarized by major classification as follows:
		September 30,
	(in thousands)	2013			2012			Life
	Office Building	$	11,608		$	11,508			40 Years
	Leasehold improvements		1,341			1,234			7-31 Years
	Furniture, fixtures and equipment		9,174			9,641			5-10 Years
			22,123			22,383
	Accumulated depreciation		(12,215	)		(12,303	)
		$	9,908		$	10,080
	The Bank has entered into long-term leases for the land on which certain branches are located. Rental expense under long-term leases for property for the years ended September 30, 2013 and 2012 was $1.2 million and $1.4 million, respectively. At September 30, 2013, minimum rental commitments under noncancellable leases are as follows:
	Years Ended September 30,	Amount
	(in thousands)
	2014	$	1,156
	2015		1,229
	2016		1,309
	2017		1,325
	2018		1,343
	After 2018		11,253
		$	17,615

Deposits

Deposits	12 Months Ended
	Sep. 30, 2013
Deposits	'
	Note 7 – Deposits
	Deposits are summarized as follows at September 30, 2013 and 2012:
		2013					2012
	(dollars in thousands)	Amount		%			Amount		%
	Type of Account
	Checking	$	71,681		13.18	%	$	71,024		12.51	%
	Non-interest bearing Checking		38,462		7.07			35,264		6.26
	Money market		79,363		14.6			94,229		16.64
	Savings		100,758		18.53			95,227		16.81
	Certificates		253,478		46.61			270,549		47.77
			543,742		99.99			566,293		99.99
	Accrued interest payable		27		0.01			63		0.01
		$	543,769		100	%	$	566,356		100	%
	The aggregate amount of jumbo certificates of deposit with a minimum denomination of $100,000 was approximately $87.5 million and $87.7 million at September 30, 2013 and 2012, respectively.
	At September 30, 2013, scheduled maturities of certificates of deposit are as follows:
		(in thousands)
	2014	$	87,351
	2015		98,336
	2016		26,789
	2017		30,264
	2018		10,728
		$	253,478
	Interest expense on deposits for the years ended September 30, 2013 and 2012 is as follows:
		2013		2012
	(in thousands)
	Checking	$	242	$	417
	Money market		236		564
	Passbook savings		112		213
	Certificates		4,119		5,139
		$	4,709	$	6,333

Federal_Home_Loan_Bank_of_Atla

Federal Home Loan Bank of Atlanta Advances and Other Borrowings	12 Months Ended
	Sep. 30, 2013
Federal Home Loan Bank of Atlanta Advances and Other Borrowings	'
	Note 8 – Federal Home Loan Bank of Atlanta Advances and Other Borrowings
	The Bank has a line of credit with the Federal Home Loan Bank of Atlanta. This line is secured by a blanket floating lien on eligible 1-4 family residential loans. At September 30, 2013, the Bank had an available unused line of credit of $77.1 million. The line of credit requires no compensating balances.
	The Bank has no outstanding Federal Home Loan Bank advances as of September 30, 2013 and 2012. The Bank also has a $5.0 million line of credit available at Manufacturers and Trust Company (“M&T”), none of which was drawn upon as of September 30, 2013.
	The Company had a Credit Agreement with M & Tand executed a Promissory Note in connection with receipt of an 18 month revolving loan facility from M & T in the maximum principal amount of $2.0 million which matured on June 1, 2012. The loan was secured by the Company’s stock in its wholly owned subsidiary, Baltimore County Savings Bank. The Company never drew on this line and the line was not renewed.
	The Company also has the availability to borrow from the discount window at the Federal Reserve Bank.

Junior_Subordinated_Debentures

Junior Subordinated Debentures	12 Months Ended
	Sep. 30, 2013
Junior Subordinated Debentures	'
	Note 9 – Junior Subordinated Debentures
	In June, 2002, the Company issued $12,887,000 of junior subordinated debentures (the debentures) to BCSB Bankcorp Capital Trust I (the Trust), a Delaware business trust, in which the Company owns all of the common equity. The debentures carry a rate of 3.65% over the three month LIBOR rate and resets quarterly. The rate was 3.92% and 4.10% September 30, 2013 and 2012 respectively. The debentures are the sole asset of BCSB Bankorp Capital Trust I. BCSB Bankcorp Capital Trust I issued $12,500,000 of mandatory redeemable preferred securities to investors. The Company’s obligation under the debentures and related documents, taken together, constitute a full and unconditional guarantee by the Company of BCSB Bankcorp Capital Trust I obligations under the preferred securities. The Preferred securities are redeemable by the Company in whole or in part at any time at a redemption price equal to par plus any accrued interest. The Company used a portion of the net proceeds that it retained from the stock offering in 2008 to redeem $6.2 million of the $12.5 million in outstanding trust preferred securities issued by a trust wholly owned by the Company.
	In September, 2003, the Company issued $10,310,000 of junior subordinated debentures (the debentures) to BCSB Bankcorp Capital Trust II (the Trust), a Delaware business trust, in which the Company owns all of the common equity. The debentures carry a rate of 3.00% over the three month LIBOR rate and resets quarterly. The rate was 3.27% and 3.45% at September 30, 2013 and 2012 respectively. The debentures are the sole asset of BCSB Bankcorp Capital Trust II. BCSB Bankcorp Capital Trust II issued $10,000,000 of mandatory redeemable preferred securities to investors. The Company’s obligation under the debentures and related documents, taken together, constitute a full and unconditional guarantee by the Company of BCSB Bankcorp Capital Trust II obligations under the preferred securities. The Preferred securities are redeemable by the Company in whole or in part at any time at a redemption price equal to par plus any accrued interest.

Pension_Plan

Pension Plan	12 Months Ended
	Sep. 30, 2013
Pension Plan	'
	Note 10 – Pension Plan
	The Bank has a 401(k) Retirement Savings Plan. Employees may contribute a percentage of their salary up to a maximum of $17,500 for 2013 and an extra $5,500 catch up contribution can be made if the participant is over 50 years of age. The Bank currently elects to contribute 50% of the first 3% of the employee’s contribution. All employees who have completed thirty days of service with the Bank and are eighteen years of age are eligible to participate. The Bank’s contribution to this plan amounted to $87,000 and $74,000 for the years ended September 30, 2013 and 2012, respectively.

Directors_Retirement_Plan

Directors Retirement Plan	12 Months Ended
	Sep. 30, 2013
Directors Retirement Plan	'
	Note 11 – Directors Retirement Plan
	The Company’s retirement plan allows directors to defer directors’ fees into a phantom investment vehicle which allows them to get a return based upon the mutual fund market.

Employee_Stock_Ownership_Plan

Employee Stock Ownership Plan	12 Months Ended
	Sep. 30, 2013
Employee Stock Ownership Plan	'
	Note 12– Employee Stock Ownership Plan
	During fiscal year 2008 the Bank modified it’s Employee Stock Ownership Plan (“ESOP”). On April 10, 2008 the ESOP acquired 122,197 shares of the Company’s common stock in connection with the Bank’s Reorganization to a stock holding company form of organization. In 1998 the Bank acquired 182,930 shares to establish the ESOP. The ESOP holds the common stock in a trust for allocation among participating employees, in trust or allocated to the participants’ accounts and an annual contribution from the Bank to the ESOP and earnings thereon.
	All employees of the Bank who attain the age of 18 and complete one year of service with the Bank will be eligible to participate in the ESOP. Participants must be employed at least 500 hours in a plan year in order to receive an allocation. Each participant’s vested interest under the ESOP is determined according to the following schedule: 0% for less than 1 year of service with the Company or the Bank, 20% for 1 year of service, 40% for 2 years of service, 60% for 3 years of service, 80% for 4 years of service, and 100% for 5 years of service. For vesting purposes, a year of service means any plan year in which an employee completes at least 1,000 hours of service. Vesting accelerates to 100% upon a participant’s attainment of age 65, death, disability or change in control.
	The ESOP will be funded by contributions made by the Bank in cash or common stock and dividends on the shares held in the Trust, if any. The Bank will recognize compensation expense as shares are committed for release from collateral at their current market price. Dividends, if any, on allocated shares are recorded as a reduction of retained earnings and dividends, if any, on unallocated shares are recorded as a reduction of the debt service. The compensation costs for the years ended September 30, 2013 and 2012 was $148,000 and $104,000, respectively.
	The ESOP shares were as follows as of September 30:
		2013		2012
	Shares released and allocated		136,285		128,138
	Unearned shares		82,206		90,353
			218,491		218,491
	Fair value of unearned shares	$	2,005,826	$	1,237,836

Management_Recognition_Plan

Management Recognition Plan	12 Months Ended
	Sep. 30, 2013
Management Recognition Plan	'
	Note 13 – Management Recognition Plan
	On July 15, 1999, the Company established a Management Recognition Plan (“MRP”) to reward and retain personnel of experience and ability in key positions of responsibility. Members of the Board of Directors and certain executive officers were eligible for awards totaling 48,147 shares of stock, which are held in a separate trust that manages the MRP. The Company funded the MRP by purchasing the shares of common stock in the open market. The Company initially awarded an aggregate of 24,004 shares of common stock. During the year ended September 30, 2002 the Company awarded an additional 13,950 shares. During the year ended September 30, 2007 the Company awarded an additional 5,527 shares. During the year ended September 30, 2008 the Company awarded an additional 4,666 shares. During the year ended September 30, 2009 the Company awarded an additional 525 shares that had been previously awarded, but were subsequently forfeited as employees left the Company. Shares awarded to the participants in the MRP are vested at a rate of 20% to 25% per year on each anniversary of the effective date of the MRP award. During the fiscal year ended September 30, 2012 1,652 shares vested and were distributed, and during the fiscal year ended September 30, 2011 2,025 shares vested and were distributed. If a participant terminates employment for reasons other than death, disability, change in control or retirement, he or she forfeits all rights to unvested shares. Compensation expense in the amount of the fair market value of the common stock at the date of the grant is recognized on a pro-rata basis over the years during which the shares are earned.
	On May 20, 2009, the Company established a second Management Recognition Plan (“MRP”) in connection with shares issued during the second step stock conversion. Members of the Board of Directors and certain executive officers were eligible for awards totaling 76,697 shares of stock, which are held in a separate trust that manages the MRP. During the year ended September 30, 2011 the Bank awarded 71,174 shares of this Plan and during the year ended September 30, 2012 the Bank awarded 5,523 shares. During the fiscal year ended September 30, 2013 19,174 shares vested and were distributed.
	Compensation expense of $214,000 and $192,000 was recognized for the MRP’s for the years ended September 30, 2013 and 2012, respectively.

Stock_Option_Plans

Stock Option Plans	12 Months Ended
	Sep. 30, 2013
Stock Option Plans	'
	Note 14 - Stock Option Plans
	The 1999 Plan
	On July 15, 1999, the Company established a Stock Option Plan (the “1999 Plan”) whereby 120,366 shares of common stock were reserved for issuance under the 1999 Plan. Options granted under the 1999 Plan may be Incentive Stock Options within the meaning of Section 422 of the Internal Revenue Code of 1986 as amended or Non-Qualified Stock Options. Options are exercisable in four or five annual installments at the market price of common stock at the date of grant. The Options must be exercised within ten years from the date of grant. There were 42,119 options granted during the year ended September 30, 1999, 43,428 options granted during the year ended September 30, 2002, 15,792 options granted during the year ended September 30, 2007, 22,193 options granted during the year ended September 30, 2008 and, 11,796 options granted during the year ended September 30, 2009. No options were granted during the years ended September 30, 2003 through 2006. Also, there were no options granted during the years ended September 30, 2011 through September 30, 2013. Unexercised options granted during the years ended September 30, 1999 and September 30, 2002 have expired.
	The 2009 Plan
	At the annual shareholders meeting held in May 2009 the Company approved an additional Stock Option Plan (the “2009 Plan”) whereby 191,740 shares of common stock were reserved for issuance under the 2009 Plan. Options granted under the 2009 Plan may be Incentive Stock Options within the meaning of Section 422 of the Internal Revenue Code of 1986 as amended or Non-Qualified Stock Options. Options are exercisable in four annual installments at the market price of common stock at the date of grant. The Options must be exercised within ten years from the date of grant. There were no options granted during the years ended September 30, 2009 or 2010. There were 177,930 options granted during the year ended September 30, 2011. There were 15,052 options granted during the year ended September 30, 2012. There were no options granted during the year ended September 30, 2013.
	The following table summarizes the shares under the Company’s stock option plans at September 30, 2013:
		Number of Shares			Exercise			Weighted Average
					Price			Contractual Life
								(in years)
			10,528			28.41			3.25
			5,264			17.95			4.2
			22,193			11.61			4.25
			10,921			8.25			5.75
			175,917			10.29			7
			15,052			13.74			8.5
	At September 30, 2013 there were 40,427 shares with a weighted average remaining contractual life of 5.9 years, and an aggregate intrinsic value of $1.7 million.
	The following tables present the activity related to options under all plans for the period ended September 30, 2013:
		Shares			Weighted Average
					Exercise Price
	Outstanding at September 30, 2011		255,211		$	12.53
	Options exercised		—			—
	Options expired		(29,610	)		(21.61	)
	Forfeited		—			—
	Granted		15,052			13.74
	Outstanding at September 30, 2012		240,653		$	11.49
	Options exercised		(778	)		(9.55	)
	Options expired		—			—
	Forfeited		—			—
	Granted		—			—
	Outstanding at September 30, 2013		239,875		$	11.5
	Exercisable at September 30, 2013		140,427		$	12.08
	During the twelve months ended September 30, 2013 there were no options granted. During the twelve months ended September 30, 2012, there were 15,052 stock options granted. Option expense recognized during the twelve month periods ended September 30, 2013 and 2012 was $166,000 and $195,000, respectively. As of September 30, 2013, $197,000 of total unrecognized pretax expense related to stock options is expected to be recognized from October 1, 2013 through March 31, 2016.
	The following weighted average assumptions were used in the Black-Scholes-Merton option pricing model for the options granted in the year ended September 30, 2012:
		2012
	Dividend Yield		0	%
	Expected volatility		21.97	%
	Risk-free interest rate		0.99	%
	Expected lives		4.0 years

Regulatory_Capital

Regulatory Capital	12 Months Ended
	Sep. 30, 2013
Regulatory Capital	'
	Note 15 - Regulatory Capital
	The Bank and the Company are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory, and possible additional discretionary, actions by the regulators that, if undertaken, could have a direct material effect on the Bank’s and the Company’s financial statements. Under capital adequacy guidelines the Bank and Company must meet specific capital guidelines that involve quantitative measures of assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors.
	Quantitative measures established by regulation to ensure capital adequacy require the Bank and the Company to maintain minimum amounts and ratios (set forth in the following table) of Tier I and Risk-Based Capital (as defined in the regulations) to Risk-Weighted Assets (as defined) and Leverage Capital (as defined) to Average Total Assets (as defined). Management believes, as of September 30, 2013, that the Bank and the Company meet all capital adequacy requirements to which they are subject.
	As of September 30, 2013, the Bank and the Company were categorized as well capitalized under the regulatory framework for prompt corrective action. To be categorized as “well capitalized” the Bank and the Company must maintain minimum capital ratios as set forth in the table. There are no conditions or events since that date that management believes have changed any of those categories. Actual capital amounts and ratios are also presented in the table.
	The following table presents the Bank’s capital position based on the September 30 financial statements and the current capital requirements.
			Actual						Minimum					Minimum
									For Capital					To Be Well
									Adequacy Purposes					Capitalized Under
														Prompt Corrective
														Action Provisions
			Amount			Ratio			Amount		Ratio			Amount		Ratio
			(dollars in thousands)
	September 30, 2013
	Leverage Capital (1)		$	66,774			10.7	%	$	24,971		4	%	$	31,214		5	%
	Tier I capital (2)			66,774			17.71			15,082		N/A			22,623		6
	Risk-Based Capital (2)			70,185			18.61			30,164		8			37,705		10
	September 30, 2012
	Leverage Capital (1)			64,419			10.07			25,600		4			32,001		5
	Tier I capital (2)			64,419			16.69			N/A		N/A			23,163		6
	Risk-Based Capital (2)			68,039			17.62			30,884		8			38,605		10
	-1	To average total assets
	-2	To risk-weighted assets
	The following table presents BCSB Bancorp’s capital position based on the September 30 financial statements and the current capital requirements:
			Actual						Minimum					Minimum
									For Capital					To Be Well
									Adequacy Purposes					Capitalized Under
														Prompt Corrective
														Action Provisions
			Amount			Ratio			Amount		Ratio			Amount		Ratio
			(dollars in thousands)
	September 30, 2013
	Leverage Capital (1)		$	54,256			8.49	%	$	25,564		4	%	$	31,955		5	%
	Tier I capital (2)			54,256			14.32			15,153		N/A			22,730		6
	Risk-Based Capital (2)			57,667			15.22			30,307		8			37,884		10
	September 30, 2012
	Leverage Capital (1)			53,446			8.39			25,487		4			31,858		5
	Tier I capital (2)			53,446			13.74			N/A		N/A			23,330		6
	Risk-Based Capital (2)			57,066			14.68			31,107		8			38,884		10
	-1	To average total assets
	-2	To risk-weighted assets
	The following table provides a reconciliation of total equity per the consolidated financial statements to the Bank’s capital amounts reflected in the above table:
			September 30,
			2013			2012
			(dollars in thousands)
	Total equity		$	49,800		$	55,139
	Adjustment for accumulated other comprehensive loss (income)			4,686			(1,511	)
	Adjustment for intangible assets			(25	)		(37	)
	Adjustment for disallowed deferred tax asset			(206	)		(145	)
	Adjustment for parent company equity			10,326			10,973
	Tangible, Tier 1 and Core Capital			64,581			64,419
	Allowance for loan losses			5,604			3,620
	Total risk-based capital		$	70,185		$	68,039
	Effective January 1, 1994 regulatory capital requirements added an interest rate risk component. The rule requires additional capital to be maintained if the Bank’s interest rate risk exposure, measured by the decline in the market value of the Bank’s net portfolio value, exceeds 2% of assets as a result of a 200 basis point shift in interest rates. As of September 30, 2013, the Bank is not subject to the interest rate risk requirement.
	The Bank’s ability to pay dividends is governed by Maryland law and the regulations of the Federal Reserve Board. Maryland law provides that dividends may be paid out of individual profits or with approval of the Commissioner, surplus of 100% of capital stock. Under Maryland law relating to financial institutions, if the surplus of a commercial bank at any time is less than 100% of its capital stock, then, until the surplus is 100% of the capital stock, the commercial bank: (i) must transfer to its surplus annually at least 10% of its net earnings; and (ii) may not declare or pay any cash dividends that exceed 90% of its net earnings.
	The Bank’s payment of dividends is also subject to the Federal Reserve Board’s Regulation H, which provides that a state member bank may not pay a dividend if the total of all dividends declared by the bank in any calendar year exceeds the total of its net profits for the year combined with its retained net profits for the preceding two calendar years, less any required transfers to surplus or to a fund for the retirement of preferred stock, unless the bank has received the prior approval of the Federal Reserve Board. The previously referenced prompt corrective action requirements prohibit dividends where the Bank would be “undercapitalized,” “significantly undercapitalized,” or “critically undercapitalized” after the dividend. Additionally, both the Commissioner and the Federal Reserve Board has the authority to prohibit the payment of dividends by a Maryland commercial bank when it determines such payment to be an unsafe and unsound banking practice. Finally, the Bank is not able to pay dividends on its capital stock if its regulatory capital would thereby be reduced below the remaining balance of the liquidation account established in connection with its conversion in April 1996 from mutual to stock form.
	In addition to the foregoing, earnings of the Bank appropriated to bad debt reserves and deducted for federal income tax purposes are not available for payment of cash dividends or other distributions to the Company without payment of taxes at the then current tax rate by the Bank on the amount of earnings removed from the reserves for such distributions. See “Taxation.” The Company intends to make full use of this favorable tax treatment afforded to the Bank and the Company and does not contemplate use of any earnings of the Bank in a manner which would limit either institution’s bad debt deduction or create federal tax liabilities.
	Uniform Lending Standards. Under Federal Reserve Board regulations, state member banks must adopt and maintain written policies that establish appropriate limits and standards for extensions of credit that are secured by liens or interests in real estate or are made for the purpose of financing permanent improvements to real estate. These policies must establish loan portfolio diversification standards, prudent underwriting standards, including loan-to-value limits that are clear and measurable, loan administration procedures and documentation, approval and reporting requirements. The real estate lending policies of state member banks must reflect consideration of the Interagency Guidelines for Real Estate Lending Policies (the “Interagency Guidelines”) that have been adopted by the federal banking agencies.
	Management will periodically evaluate its lending policies to assure conformity to the Interagency Guidelines and does not anticipate that the Interagency Guidelines will have a material effect on its lending activities.

Preferred_Stock

Preferred Stock	12 Months Ended
	Sep. 30, 2013
Preferred Stock	'
	Note 16 - Preferred Stock
	On December 23, 2008, as part of the Troubled Asset Relief Program (“TARP”) Capital Purchase Program, the Company entered into a Letter Agreement, and the related Securities Purchase Agreement – Standard Terms (collectively, the “Purchase Agreement”), with the United States Department of the Treasury (“Treasury”), pursuant to which the Company issued (i) 10,800 shares of Fixed Rate Cumulative Perpetual Preferred Stock, Series A, liquidation preference $1,000 per share (“Series A preferred stock”), and (ii) a warrant to purchase 183,465 shares of the Company’s common stock, par value $0.01 per share, for an aggregate purchase price of $10,800,000 in cash. The Series A preferred stock and the warrants were issued in a transaction exempt from registration pursuant to Section 4(2) of the Securities Act of 1933, as amended.
	On January 26, 2011 the Company repurchased all $10.8 million of Series A Preferred Stock issued to the U.S. Treasury in March 2008 pursuant to the TARP Capital Purchase Program. BCSB completed the repayment without raising additional capital. As a result of the redemption, the Company accelerated the accretion of the remaining discount of approximately $310,000 on the preferred stock and recorded a reduction in retained earnings.
	On April 19, 2013, the Company repurchased the warrant to purchase 183,465 shares of the Company’s common stock at an exercise price of $8.83 per share. The warrant was exercisable at any time on or before March 23, 2018. The Company paid an aggregate price of $1,442,000 for the repurchase of the warrant, which has been cancelled. The purchase price was based on the fair market value of the warrant as agreed upon by the Company and the U.S. Treasury. The repurchase transaction resulted in a reduction in total Stockholders’ Equity of $1,442,000. As a result of the purchase of the warrant the Company has now completely exited the TARP Capital Purchase Program.

Income_Taxes

Income Taxes	12 Months Ended
	Sep. 30, 2013
Income Taxes	'
	Note 17 - Income Taxes
	The income tax provision consists of the following for the years ended September 30,:
		2013			2012
		(dollars in thousands)
	Current expense (benefit)	$	676		$	485
	Deferred expense (benefit)		647			435
	Total tax expense(benefit)	$	1,323		$	920
	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at September 30, are as follows:
		2013			2012
	Deferred Tax Assets:
	ESOP and MRP	$	171		$	188
	Deferred compensation		1,620			1,446
	Other-than-temporary-impairment on securities available for sale		96			271
	Allowance for loan losses		2,211			2,158
	Allowance for uncollected interest		281			333
	Unrealized holding losses on securities		3,053			—
	Net operating loss carry forward		1,369			1,988
	Other		—			79
	Total gross deferred tax assets		8,801			6,463
	Deferred Tax Liabilities:
	Federal Home Loan Bank of Atlanta stock dividends		(213	)		(213	)
	Depreciation		(220	)		(288	)
	Unrealized holding gains on securities		—			(984	)
	Total gross deferred tax liabilities		(433	)		(1,485	)
	Net Deferred Tax Assets	$	8,368		$	4,978
	The amount computed by applying the statutory federal income tax rate to income before taxes is different than the taxes provided for the following reasons:
		For the Years Ended September 30,
		2013						2012
	(dollars in thousands)	Amount			Percent			Amount			Percent of
					of						Pretax
					Pretax						Income
					Income
	Statutory federal income tax rate	$	1,069			34	%	$	925			34	%
	Changes Resulting From:
	State income tax net of Federal income tax benefit		239			7.61			148			5.44
	Income from life insurance		(202	)		(6.43	)		(218	)		(8.01	)
	Non-deductible merger related expense		169			5.38			—			—
	Other		48			1.53			65			2.39
		$	1,323			42.09	%	$	920			33.82	%
	The Company’s effective income tax rate increased during the twelve months ended September 30, 2013 as compared to the prior fiscal year primarily due to certain merger related expenses which are not deductible for income tax purposes.
	The Company and its subsidiaries file a consolidated federal income tax return on a fiscal year basis.
	As of September 30, 2013, the Company had net operating loss carryforwards of approximately $3.8 million which begin to expire in 2026. As a result of the stock offering and conversion that occurred in April 2008, the net operating loss carryforwards are subject to annual limits under IRC Section 382 of $1.6 million. These net operating loss carryforwards may be used to offset future income taxes payable, however the Company may be subject to alternative minimum tax. Their realization is dependent on future taxable income.
	Prior to October 1, 2011 the Bank was a qualified thrift lender and as such the Bank was not required to provide a deferred tax liability for bad debt reserves for tax purposes that arose in fiscal years beginning before December 31, 1987. Such bad debt reserves for the Bank amounted to approximately $6.2 million with an income tax effect of approximately $2.4 million at September 30, 2012. This bad debt reserve would become taxable if certain conditions are not met by the Bank.

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Sep. 30, 2013
Related Party Transactions	'
	Note 18 - Related Party Transactions
	Director Michael J. Klein is a member holding a 20% ownership interest in Colgate Investments, LLC, a limited liability company that owns real property that the Bank leases for a branch office. The Bank paid $74,000, and $76,000 in rent to Colgate Investments, LLC during the years ended September 30, 2013, and 2012 respectively, and expects to pay $74,000 during the year ended September 30, 2014. Mr. Klein is also a one-third owner in Lot 17 Newport Drive, LLC that owns real property that the Bank leases for a branch office. The Bank paid $37,500, and $0 in rent to Lot 17 Newport Drive, LLC during the years ended September 30, 2013, and 2012 respectively, and expects to pay $75,000 during the year ended September 30, 2014. We believe that there are no preferential terms granted in this transaction and that the terms are similar to arms-length third-party transactions. The remaining 80% of Colgate Investments, LLC is owned by other members of Mr. Klein’s family. The remaining two-thirds ownership of Lot 17 Newport Drive is owned by other members of Mr. Klein’s family.

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Sep. 30, 2013
Fair Value Measurements	'
	Note 19 - Fair Value Measurements
	The Company applies guidance issued by FASB regarding fair value measurements which provided a framework for measuring and disclosing fair value under generally accepted accounting principles. This guidance applies only to fair value measurements required or permitted under current accounting pronouncements, but does not require any new fair value measurements. Fair value is defined as the price to sell an asset or to transfer a liability in an orderly transaction between willing market participants as of the measurement date. The statement also expands disclosures about financial instruments that are measured at fair value and eliminates the use of large position discounts for financial instruments quoted in active markets. The disclosure’s emphasis is on the inputs used to measure fair value and the effect on the measurement on earnings for the period. The adoption of this guidance did not have any effect on the Company’s financial position or results of operations.
	GAAP establishes a three-level valuation hierarchy for disclosure of fair value measurements. The valuation hierarchy is based on the inputs used to value the particular asset or liability at the measurement date. The three levels are defined as follows:
	•    Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.
	•    Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, quoted process of identical or similar assets or liabilities in markets that are not active, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
	•    Level 3 – inputs to the valuation methodology are unobservable and significant to the fair value measurement.
	Each financial instrument’s level assignment with the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement for the particular category. Management reviews and updates the fair value hierarchy classifications of the Company’s assets and liabilities on a quarterly basis.
	There were no transfers between levels during the year ended September 30, 2013. The Company’s policy is to recognize transfers in and transfers out at the actual date of the event or change in the circumstances that caused the transfer. The following is a description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of each instrument under the valuation hierarchy.
	Fair values of investment securities are estimated by using pricing models, quoted prices of securities with similar characteristics, or discounted cash flows and are generally classified within Level 2 of the valuation hierarchy.
	The following tables present the financial instruments measured at fair value by class on the recurring basis as of September 30, 2013 and September 30, 2012 on the Consolidated Statement of Financial Condition utilizing the hierarchy previously discussed.
					At September 30, 2013						Total changes
											In fair values
											Included in
											Period
	($ in thousands)		Total		Level 1		Level 2		Level 3		Earnings
	Loans held for sale		$	—	$	—	$		$	—	$	—
	Equity Investments			100		—		—		100		—
	Corporate Bonds available for sale			4,654		—		4,654		—		—
	GNMA certificates available for sale			3,384		—		3,384		—		—
	FNMA certificates available for sale			22,040		—		22,040		—		—
	FHLMC certificates available for sale			8,187		—		8,187		—		—
	Private label collateralized mortgage obligations available for sale			4,614		—		4,614		—		—
	Collateralized mortgage obligations available for sale			181,825		—		181,825		—		—
			$	224,804	$	—	$	224,704	$	100	$	—
	The table below summarizes the changes in the recorded amount of assets classified as Level 3 in the fair value hierarchy at September 30, 2013:
	Beginning Balance		$	100,000
	Equity investment purchases			—
	Ending Balance		$	100,000
					At September 30, 2012						Total changes
											In fair values
											Included in
											Period
	($ in thousands)		Total		Level 1		Level 2		Level 3		Earnings
	Loans held for sale		$	806		—	$	806	$	—	$	—
	Equity Investments			100		—		—		100		—
	Corporate Bonds available for sale			4,528		—		4,528		—		—
	GNMA certificates available for sale			3,417		—		3,417		—		—
	FNMA certificates available for sale			12,530		—		12,530		—		—
	FHLMC certificates available for sale			5,853		—		5,853		—		—
	Private label collateralized mortgage obligations available for sale			9,034		—		9,034		—		370	(1)
	Collateralized mortgage obligations available for sale			182,729		—		182,729		—		—
			$	218,997	$	—	$	218,897	$	100	$	370	(1)
	-1	Represents other-than-temporary impairment charges taken during the fiscal year ended September 30, 2012.
	The table below summarizes the changes in the recorded amount of assets classified as Level 3 in the fair value hierarchy at September 30, 2012:
	Beginning Balance		$	100,000
	Equity investment purchases			—
	Ending Balance		$	100,000
	Nonrecurring fair value changes
	Certain assets and liabilities are measured at fair value on a nonrecurring basis. These instruments are not measured at fair value on an ongoing basis, but are subject to fair value in certain circumstances, such as when there is evidence of impairment that may require write-downs. The write-downs for the Company’s more significant assets or liabilities measured on a non-recurring basis are based on the lower of amortized cost or estimated fair value.
	Impaired Loans
	The Company considers loans to be impaired when it becomes probable that the Company will be unable to collect all amounts due in accordance with the contractual terms of the loan agreement. All non-accrual loans are considered impaired. The measurement of impaired loans is based on the present value of the expected cash flows discounted at the historical effective interest rate, the market price of the loan, or the fair value of the underlying collateral asset.
	Premises and Equipment held for sale
	The Company considers premises and equipment held for sale to be impaired when it becomes probable that the Company will be unable to sell the property and equipment for the remaining book value.
	Foreclosed Real Estate
	Once a loan is determined to be uncollectible, the underlying collateral is repossessed and reclassified to Foreclosed Real Estate. These assets are carried at lower of cost or fair value of the collateral, less costs to sell. There was $2.9 million in Foreclosed Real Estate at September 30, 2013.
	Impaired loans and Foreclosed Real Estate are classified as Level 3 within the valuation hierarchy.
	At September 30, 2013
	($ in thousands)		Total		Level 1		Level 2		Level 3
	Impaired Residential Loans		$	1,454	$	—	$	—	$	1,454
	Impaired Residential Rental Loans			6,362		—		—		6,362
	Impaired Commercial and Lease Loans			8,381		—		—		8,381
	Impaired Construction Loans			2,360		—		—		2,360
	Impaired Home Equity Loans			265		—		—		265
Premises and equipment held for sale			—		—		—		—
Foreclosed Real Estate			2,861		—		—		2,861
Total		$	21,683	$	—	$	—	$	21,683
At September 30, 2012
($ in thousands)		Total		Level 1		Level 2		Level 3
Impaired Residential Loans		$	1,163	$	—	$	—	$	1,163
Impaired Residential Rental Loans			6,295		—		—		6,295
Impaired Commercial and Lease Loans			5,449		—		—		5,449
Impaired Construction Loans			7,196		—		—		7,196
Impaired Home Equity Loans			210		—		—		210
Premises and equipment held for sale			208		—		—		208
Foreclosed Real Estate			1,674		—		—		1,674
Total		$	22,195

Disclosures_About_Fair_Value_o

Disclosures About Fair Value of Financial Instruments	12 Months Ended
	Sep. 30, 2013
Disclosures About Fair Value of Financial Instruments	'
	Note 20 - Disclosures About Fair Value of Financial Instruments
	The estimated fair values of the Bank’s financial instruments are summarized below. The fair values of a significant portion of these financial instruments are estimates derived using present value techniques prescribed by the FASB and may not be indicative of the net realizable or liquidation values. Also, the calculation of estimated fair values is based on market conditions at a specific point in time and may not reflect current or future fair values.
	The carrying amount is a reasonable estimate of fair value for cash, federal funds sold, interest-bearing deposits in other banks and interest bearing time deposits. Fair value is based upon market prices quoted by dealers for investment securities and mortgage backed securities. The carrying amount of Federal Home Loan Bank of Atlanta stock is a reasonable estimate of fair value. The fair value of the Bank owned life insurance is the cash surrender value. Loans receivable were discounted using a single discount rate, comparing the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. The fair value of demand deposits, savings accounts and money market deposits is the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit is estimated using the rates currently offered on deposits of similar remaining maturities. Junior Subordinated Debt is considered to be at fair value. The fair value of Federal Home Loan Bank advances is estimated using rates currently offered on advances of similar remaining maturities. The fair value of the trade date securities are the estimated market value as of September 30, 2013 rather than the contract purchase price. The carrying amounts of accrued interest receivable, accrued interest payable, and mortgage servicing rights approximate fair value. Fair values for off-balance-sheet, credit-related financial instruments are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the counterparties’ credit standing.
	The Company charges fees for commitments to extend credit. Interest rates on loans for which these commitments are extended are normally committed for periods of one year or less. Fees charged on standby letters of credit and other financial guarantees are deemed to be immaterial and these guarantees are expected to be settled at face amount or expire unused. It is impractical to assign any fair value to these commitments.
	The carrying amounts and estimated fair values of the Company’s financial instruments at September 30, 2013 are as follows:
		September 30, 2013
		Fair Value Measurement
	(dollars in thousands)	Carrying		Fair		Quoted		Significant		Significant
		Amount		Value		Prices in		Other		Unobservable
						Active		Observable		Inputs
						Markets for		Inputs		(Level 3)
						Identical		(Level 2)
						Assets or
						Liabilities
						(Level 1)
	Financial Assets
	Cash	$	8,073	$	8,073	$	8,073	$	—	$	—
	Interest-bearing deposits in other banks		11,534		11,534		11,534		—		—
	Federal Funds sold		6,847		6,847		6,847		—		—
	Investment securities available for sale		4,754		4,754		—		4,654		100
	Loans available for sale		—		—		—		—		—
	Loan Receivable
	Mortgage Loans		322,508		338,046		—		—		338,046
	Share Loans		439		439		—		—		439
	Consumer Loans		1,189		1,189		—		—		1,189
	Mortgage-backed securities-Available for Sale		220,050		220,050		—		220,050		—
	Federal Home Loan Bank of Atlanta Stock		771		771		771		—		—
	Federal Reserve Bank Stock		1,394		1,394		1,394		—		—
	Bank owned life insurance		17,473		17,473		17,473		—		—
	Accrued interest receivable		1,700		1,700		—		1,700		—
	Mortgage servicing rights		12		12		—		—		12
	Financial Liabilities
	Deposits	$	543,769	$	541,527		—	$	541,527		—
	Junior Subordinated Debt		17,011		17,011		—		17,011		—
	Accrued interest payable		27		27		—		27		—
	The carrying amounts and estimated fair values of the Company’s financial instruments at September 30, 2012 are as follows:
		September 30, 2012
		Fair Value Measurement
	(dollars in thousands)	Carrying		Fair		Quoted		Significant		Significant
		Amount		Value		Prices in		Other		Unobservable
						Active		Observable		Inputs
						Markets for		Inputs		(Level 3)
						Identical		(Level 2)
						Assets or
						Liabilities
						(Level 1)
	Financial Assets
	Cash	$	8,389	$	8,389	$	8,389	$	—	$	—
	Interest-bearing deposits in other banks		11,501		11,501		11,501		—		—
	Federal Funds sold		31,034		31,034		31,034		—		—
	Investment securities available for sale		4,628		4,628		—		4,528		100
	Loans available for sale		806		806		—		806		—
	Loan Receivable
	Mortgage Loans		332,665		358,297		—		—		358,297
	Share Loans		290		290		—		—		290
	Consumer Loans		1,855		1,816		—		—		1,816
	Mortgage-backed securities-Available for Sale		213,563		213,563		—		213,563		—
	Federal Home Loan Bank of Atlanta Stock		959		959		959		—		—
	Federal Reserve Bank Stock		1,381		1,381		1,381		—		—
	Bank owned life insurance		16,869		16,869		16,869		—		—
	Accrued interest receivable		2,024		2,024		—		2,024
	Mortgage servicing rights		53		53		—		—		53
	Financial Liabilities
Deposits	$	566,356	$	567,848		—	$	567,848		—
Junior Subordinated Debt		17,011		17,011		—		17,011		—
Accrued interest payable		63		63		—		63		—

Changes_in_Accumulated_Other_C

Changes in Accumulated Other Comprehensive (Loss) Income by Component.	12 Months Ended
	Sep. 30, 2013
Changes in Accumulated Other Comprehensive (Loss) Income by Component.	'
	Note 21 - Changes in Accumulated Other Comprehensive (Loss) Income by Component.
	The following table presents each component of accumulated other comprehensive income (loss), net of tax, for fiscal year ended September 30, 2013:
	(dollars in thousands)		Net Unrealized			Total
			Gains
			and Losses on
			Investment
			Securities
	October 1, 2012		$	1,511		$	1,511
	Other Comprehensive Loss Before Reclassifications			(6,155	)		(6,155	)
	Amounts Reclassified from Accumulated Other Comprehensive Income net of tax $(27)			(42	)		(42	)
	Net Current-Period Other Comprehensive Loss			(6,197	)		(6,197	)
	September 30, 2013		$	(4,686	)	$	(4,686	)
	1	Amounts in parenthesis indicate debits
	The following table presents the amounts reclassified out of each component of accumulated other comprehensive income (loss) for the twelve months ended September 30, 2013:
	Details about Accumulated Other		Amount			Affected Line Item in
	Comprehensive Income (Loss) Components (dollars in thousands)		Reclassified			the Statement Where Net
			from			Income is Presented
			Accumulated
			Other
			Comprehensive
			Income (Loss)
	Gain on Sale of Mortgage-Backed Securities		$	69		Gain on Sale of mortgage-
						backed securities
				(27	)	Income tax Expense
	Total Reclassification for the Period		$	42		Net of Tax

Condensed_Financial_Informatio

Condensed Financial Information (Parent Company Only)	12 Months Ended
	Sep. 30, 2013
Condensed Financial Information (Parent Company Only)	'
	Note 22- Condensed Financial Information (Parent Company Only)
	Information as to the financial condition of BCSB Bancorp, Inc. as of September 30, 2013 and 2012 and the results of operations and cash flows for the years ended September 30, 2013 and 2012 are summarized below:
	Statements of Financial Condition
		September 30,
		2013			2012
		(in thousands)
	Assets
	Cash	$	1,358		$	2,341
	Interest bearing deposits in other banks		220			219
	Employee stock ownership plan loan		901			968
	Accrued interest receivable		35			38
	Investment in subsidiaries		63,188			67,355
	Prepaid and deferred income taxes		1,372			1,530
	Other assets		266			11
	Total assets	$	67,340		$	72,462
	Liabilities and Stockholders’ Equity
	Liabilities:
	Junior subordinated debentures	$	17,011		$	17,011
	Other liabilities		529			312
	Total Liabilities		17,540			17,323
	Total stockholders’ equity		49,800			55,139
	Total liabilities and stockholders’ equity	$	67,340		$	72,462
		Years Ended September 30,
		2013			2012
		(in thousands)
	Statements of Operations
	Interest and Fees on loans	$	48		$	52
	Other interest income		28			26
	Total interest income		76			78
	Interest expense on borrowings		613			644
	Net interest income (expense)		(537	)		(566	)
	Non-interest expense
	Professional fees		71			85
	Merger related expense		579			—
	Other expenses		324			171
	Total non-interest expense		974			256
	Loss before income tax benefit		(1,511	)		(822	)
	Income tax benefit		(345	)		(283	)
	Loss before equity in net income of subsidiary		(1,166	)		(539	)
	Equity in net income of subsidiary		2,986			2,339
	Net income	$	1,820		$	1,800
		Years Ended September 30,
		2013			2012
		(in thousands)
	Statements of Cash Flows
	Net income	$	1,820		$	1,800
	Adjustments to reconcile net income to net cash (used) provided by Operating Activities
	Equity in net income of subsidiary		(2,986	)		(2,339	)
	Decrease in accrued interest receivable		3			—
	Decrease in prepaid and deferred income taxes		158			2,154
	Decrease in receivable from subsidiary		67			64
	(Increase) decrease in other assets		(256	)		9
	Increase in other liabilities		215			111
	Net cash (used) provided by operating activities		(979	)		1,799
		Years Ended September 30,
		2013			2012
		(in thousands)
	Cash Flows from Financing Activities
	Dividends from subsidiary		1,500			—
	Stock purchase		(68	)		(40	)
	Redemption of stock warrants		(1,442	)		—
	Exercised stock options		7
	Net cash used by financing activities		(3	)		(40	)
(Decrease) increase in cash and cash equivalents		(982	)		1,759
Cash and cash equivalents at beginning of period		2,560			801
Cash and cash equivalents at end of period	$	1,578		$	2,560

Merger

Merger	12 Months Ended
	Sep. 30, 2013
Merger	'
	Note 23 - Merger
	On June 13, 2013, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with F.N.B. Corporation (“FNB”), the parent company of First National Bank of Pennsylvania (“FNB Bank”). Pursuant to the Merger Agreement, the Company will merge with and into FNB (the “Merger”). Promptly following consummation of the Merger, it is expected that Baltimore County Savings Bank will merge with and into FNB Bank. In the Merger, shareholders of the Company will receive 2.080 shares (the “Exchange Ratio”) of FNB common stock for each common share of the Company they own. Outstanding Company stock options and share awards relating to Company common shares will be converted into options and share awards relating to shares of FNB common stock upon consummation of the Merger, subject to adjustments based on the Exchange Ratio. Consummation of the Merger is subject to certain conditions, including, among others, approval of the Merger by the Company’s shareholders, the receipt of all required governmental filings and regulatory approvals and expiration of applicable waiting periods, accuracy of specified representations and warranties of each party, the performance in all material respects by each party of its obligations under the Merger Agreement, effectiveness of the registration statement to be filed by FNB with the SEC to register shares of FNB common stock to be offered to Company shareholders, receipt of tax opinions, and the absence of any injunctions or other legal restraints. Currently, the Merger is expected to be completed in the first quarter of calendar 2014.

Quarterly_Financial_Data_Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Sep. 30, 2013
Quarterly Financial Data (Unaudited)	'
	Note 24 - Quarterly Financial Data (Unaudited)
	Summarized unaudited quarterly financial data for the year ended September 30, 2013 is as follows:
	Operating Summary:
		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
		(in thousands except per share data)
	Interest Income	$	6,598	$	6,100	$	5,908	$	5,832
	Interest Expense		1,484		1,341		1,266		1,231
	Net Interest Income		5,114		4,759		4,642		4,601
	Provision for Loan Losses		500		450		150		—
	Net Interest Income after provision for loan losses		4,614		4,309		4,492		4,601
	Other Income		665		667		699		502
	Other Expenses		4,267		4,538		4,519		4,082
	Income before income tax expense		1,012		438		672		1,021
	Income tax expense		373		135		236		579
	Net income available to common shareholders	$	639	$	303	$	436	$	442
	Per share date:
	Basic earnings per share	$	0.21	$	0.09	$	0.14	$	0.14
	Diluted earnings per share	$	0.2	$	0.09	$	0.14	$	0.13
	Summarized unaudited quarterly financial data for the year ended September 30, 2012 is as follows:
	Operating Summary:
		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
		(in thousands except per share data)
	Interest Income	$	6,701	$	6,514	$	6,392	$	6,464
	Interest Expense		1,931		1,753		1,667		1,626
	Net Interest Income		4,770		4,761		4,725		4,838
	Provision for Loan Losses		300		300		300		300
	Net Interest Income after provision for loan losses		4,470		4,461		4,425		4,538
	Other Income		544		1,071		349		486
	Other Expenses		4,315		4,663		4,192		4,454
	Income before income tax expense		699		869		582		570
	Income tax expense		237		295		214		174
	Net income available to common shareholders	$	462	$	574	$	368	$	396
	Per share date:
	Basic earnings per share	$	0.15	$	0.19	$	0.11	$	0.13
	Diluted earnings per share	$	0.15	$	0.18	$	0.11	$	0.12

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Sep. 30, 2013
Principles of Consolidation	'
	Principles of Consolidation - BCSB Bancorp, Inc. (the “Company”) owns 100% of Baltimore County Savings Bank, and its subsidiaries (the “Bank”). The Bank owns 100% of Ebenezer Road, Inc. and Lyons Properties, LLC. The accompanying consolidated financial statements include the accounts and transactions of these companies on a consolidated basis since the date of incorporation. All intercompany transactions have been eliminated in the consolidated financial statements. Ebenezer Road, Inc. sells insurance products and Lyons Properties, LLC holds real estate owned through foreclosure or deeds in lieu of foreclosure.
Business	'
	Business - The Company’s primary purpose is ownership of the Bank. The Bank’s primary business activity is the acceptance of deposits from the general public in its market area and using the proceeds for investments and loan originations. The Bank is subject to competition from other financial institutions. The Bank is subject to the regulations of certain federal and State agencies and undergoes periodic examinations by those regulatory authorities.
Basis of Financial Statement Presentation	'
	Basis of Financial Statement Presentation - The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America. In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the statement of financial condition and revenues and expenses for the period. Actual results could differ significantly from those estimates. Material estimates that are particularly susceptible to significant change in the near-term relate to the determination of the allowance for loan losses, valuations of foreclosed real estate, intangible assets, deferred income taxes and other-than-temporary impairment of investment securities.
Investments Securities and Mortgage Backed Securities	'
	Investments Securities and Mortgage Backed Securities – We designate securities into one of three categories at the time of purchase. Debt securities that we have the positive intent and ability to hold to maturity are classified as held to maturity and recorded at amortized cost. Debt and equity securities are classified as trading securities if bought and held principally for the purpose of selling them in the near term. Trading securities are reported at the estimated fair value, with unrealized gains and losses included in earnings. Debt securities not classified as held to maturity and debt and equity securities not classified as trading securities are considered available for sale and are reported at estimated fair value, with unrealized gains and losses reported as a separate component of stockholders’ equity, net of tax effects, in accumulated other comprehensive income.
	Estimated fair value is determined based on bid prices received from third party pricing services. Gains or losses on the sale of investments are calculated using a specific-identification basis and are determined on a trade-date basis. Premiums and discounts on investment and mortgage-backed securities are amortized over the expected life of the security using the interest method.
	A decline in the fair value of any available for sale or held to maturity security, below cost, that is deemed to be other than temporary, results in a reduction in the carrying amount to fair value. The impairment loss is bifurcated between that related to credit loss which is recognized in non-interest income and that related to all other factors which is recognized in other comprehensive income. To determine whether an impairment is other than temporary, the Company considers, among other thinks, the duration and the extent to which the fair value of an investment is less than its cost, changes in value subsequent to year end, forecast performance of the issuer, and whether the Company has the intent to hold the investment until market price recovery, or for debt securities whether the Company has the intent to sell the security or more likely than not will be required to sell the debt security before its anticipated recovery.
Restricted Stock Investments	'
	Restricted Stock Investments - The Bank, as a member of the Federal Home Loan Bank System, is required to maintain an investment in capital stock of the Federal Home Loan Bank of Atlanta (“FHLB”) in varying amounts based on balances of outstanding home loans and on amounts borrowed from the FHLB. Because no ready market exists for this stock and it has no quoted market value, the Bank’s investment in this stock is carried at cost.
	The Bank, as a state member of the Federal Reserve Bank must subscribe in capital stock in its district in an amount equal to six percent of its combined capital and surplus (but excluding retained earnings). Three percent of this amount must be paid in and the remaining three percent is on call.
Loans Receivable	'
	Loans Receivable - Loans receivable are stated at unpaid principal balances, less undisbursed portion of loans in process, unearned interest on consumer loans, deferred loan origination fees and the allowance for loan losses, since management has the ability and intention to hold them to maturity.
	Interest income is accrued on the unpaid principal balance. Loan origination fees and certain direct loan origination costs are deferred and recognized by the interest method over the contractual life of the related loan as an adjustment of yield.
	Accrual of interest is discontinued on a loan when management believes, after considering economic and business conditions and collection efforts, that the borrower’s financial condition is such that collection of interest is doubtful or when payment of principal and interest has become ninety days past due unless the obligation is well secured and in the process of collection. Specifically, interest payments received are recognized as interest income or, if the ultimate collectability of principal is in doubt, are applied to principal. A loan is considered past due or delinquent when a contractual payment is not paid in the month it is due.
Loans Held for Sale	'
	Loans Held for Sale - Loans held for sale are carried at lower of cost or market value in the aggregate. Market value is derived from secondary market quotations for similar instruments. Net unrealized losses are recognized through a valuation allowance by charges to income.
Allowance for Losses on Loans	'
	Allowance for Losses on Loans - An allowance for losses on loans is provided through charges to income in an amount that management believes will be adequate to absorb losses on existing loans that may become uncollectible, based on evaluations of the collectability of loans and prior loan loss experience. The allowance consists of specific and general reserve components. For individual loans that are classified as impaired, an allowance is established when the collateral value, less estimated selling costs, of the impaired loan is lower than the carrying amount of that loan. The general reserve component covers non-classified loans and is based on historical loss experience adjusted for qualitative factors.
	Loans deemed to be uncollectible are charged against the allowance for losses on loans and subsequent recoveries, if any, are credited to the allowance. The evaluations take into consideration such factors as changes in the nature and volume of the loan portfolio, overall portfolio quality, review of specific problem loans, and current economic conditions that may affect the borrowers’ ability to pay. Management believes the allowance for losses on loans is adequate. While management uses available information to estimate losses on loans, future additions to the allowance may be necessary based on changes in economic conditions, particularly in the state of Maryland. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Bank’s allowance for losses on loans. Such agencies may require the Bank to recognize additions to the allowance based on their judgments about information available to them at the time of their examination.
	In accordance with the provisions of FASB’s accounting standards codification, (“FASB ASC”) Topic 310 “Receivables,” the Bank determines and recognizes impairment of certain loans. A loan is determined to be impaired when, based on current information and events, it is probable that the Bank will be unable to collect all amounts due according to the contractual terms of the loan agreement. A loan is not considered impaired during a period of delay in payment if the Bank expects to collect all amounts due, including past-due interest. The Bank generally considers a period of delay in payment to include delinquency up to and including 90 days. The accounting codification requires that impaired loans be measured at the present value of its expected future cash flows discounted at the loan’s effective interest rate, or at the loan’s observable market price or the fair value of the collateral if the loan is collateral dependent.
	ASC Topic 310 is generally applicable for all loans except large groups of smaller-balance homogeneous loans that are evaluated collectively for impairment, including residential first and second mortgage loans and consumer installment loans. Impaired loans are therefore generally comprised of commercial mortgage real estate development and certain restructured residential loans, including residential rental investor properties.
	In addition, impaired loans are generally loans which management has placed in non-accrual status since loans are placed in non-accrual status on the earlier of the date that management determined that the collection of principal and/or interest is in doubt or the date that principal or interest is 90 days or more past due. The Bank recognized interest income for impaired loans consistent with its method for non-accrual loans. Specifically, interest payments received are recognized as interest income or, if the ultimate collectability of principal is in doubt, are applied to principal.
Foreclosed Real Estate	'
	Foreclosed Real Estate - Real estate acquired through foreclosure is initially recorded at the estimated fair value less estimated disposal cost. Management periodically evaluates the recoverability of the carrying value of the real estate acquired through foreclosure using estimates as previously described in Allowance for Loan Losses. In the event of a subsequent decline, management provides an additional allowance to reduce real estate acquired through foreclosure to its fair value less estimated disposal cost. Costs relating to holding such real estate are charged against income in the current period while costs relating to improving such real estate are capitalized until a saleable condition is reached.
Loan Servicing and Mortgage Servicing Rights	'
	Loan Servicing and Mortgage Servicing Rights – The cost of mortgage servicing rights is amortized in proportion to, and over the period of, estimated net servicing revenues. Impairment of mortgage servicing rights is assessed based on the fair value of those rights. Fair values are estimated by calculating the net present values of the cash flows over the life of the loans. Impairment is determined on a loan by loan basis. The amount of impairment recognized, if any, is the amount by which the capitalized mortgage servicing rights for a loan exceeds its fair value.
Premises and Equipment	'
	Premises and Equipment - Premises and equipment are recorded at cost. Depreciation is computed on the straight-line method, based on the useful lives of the respective assets.
Premises and Equipment, held for sale	'
	Premises and Equipment, held for sale – Premises and equipment held for sale are recorded at net realizable value. In fiscal year 2012 the Board of Directors of Baltimore County Savings Bank made a decision to close the Hamilton branch and consolidate it into the Carney Branch. This building was sold in June 2013 and the Bank recorded a gain of $114,000.
Income Taxes	'
	Income Taxes - Deferred income taxes are recognized for temporary differences between the financial reporting basis and income tax basis of assets and liabilities based on enacted tax rates expected to be in effect when such amounts are realized or settled. Deferred tax assets are recognized only to the extent that is more likely than not that such amounts will be realized based on consideration of available evidence. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.
	The provisions of Accounting for Uncertainty in Income Taxes, codified within FASB ASC 740 “ Income Taxes,” prescribe a recognition threshold and measurement attribute for the financial statement recognition and measurement for a tax position taken or expected to be taken in a tax return, FASB ASC 740 also provides guidance on derecognition, classifications, interest and penalties, accounting in interim periods, disclosure and transition. Tax positions must meet a more-likely-than-not recognition threshold in order for the related tax benefit to be recognized or continue to be recognized. As of September 30, 2013, and 2012, there were no unrecognized tax benefits. The Company does not anticipate the total amount of unrecognized tax benefits to significantly change within the next 12 months. The Company recognizes interest and penalties on income tax assessments or income tax refunds, where applicable, in the financial statements as a component of its provision for income taxes. The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various state and city jurisdictions. The Company is no longer subject to federal and state income tax examinations for tax years prior to 2009.
Transfers of Financial Assets	'
	Transfers of Financial Assets -Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when: (1) the assets have been isolated from the Bank, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and (3) the Bank does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Significant Group Concentrations of Credit Risk	'
	Significant Group Concentrations of Credit Risk - Most of the Bank’s activities are with customers located within the greater Baltimore metropolitan area. The Bank does not have any significant concentrations to any one industry or customer.
Earnings Per Share	'
	Earnings Per Share - Basic per share amounts are based on the weighted average shares of common stock outstanding. Diluted earnings per share assume the conversion, exercise or issuance of all potential common stock instruments such as options, warrants and convertible securities, unless the effect is to reduce a loss or increase earnings per share. The basic and diluted weighted average shares outstanding for the years ended September 30, 2013 and 2012 are as follows:
		2013
		Income (Loss)			Shares			Per Share
		(Numerator)			(Denominator)			Amount
		( in thousands except per share data)
	Basic EPS
	Net Income available to shareholders	$	1,820			3,110		$	0.58
	Diluted EPS
	Effect of dilutive shares		—			124			(.02	)
	Net Income available to shareholders	$	1,820			3,234		$	0.56
		2012
	Basic EPS
	Net Income available to shareholders	$	1,800			3,102			$0.58
	Diluted EPS
	Effect of dilutive shares		—			96			(0.02	)
	Net Income available to shareholders	$	1,800			3,198		$	0.56
	Options to purchase 10,528 shares which were outstanding at September 30, 2013 and 60,454 shares which were outstanding September 30, 2012, were not included in the computation of diluted EPS because the effect would have been anti-dilutive.
Statement of Cash Flows	'
	Statement of Cash Flows - In the statement of cash flows, cash and cash equivalents include cash, Federal Home Loan Bank of Atlanta overnight deposits, federal funds and certificates of deposit with an original maturity date less than ninety days.
Employee Stock Ownership Plan	'
	Employee Stock Ownership Plan - The Company accounts for its Employee Stock Ownership Plan (“ESOP”) in accordance with FASB’s accounting standards codification (See Note 12). Allocated ESOP shares are considered to be outstanding for the computation of EPS as they are committed to be released.
Rabbi Trust	'
	Rabbi Trust - The Company established a rabbi trust to fund certain benefit plans. The Company accounts for these plans in accordance with FASB’s accounting standards codification guidance. Until the plan benefits are paid, creditors may make claims against the assets if the Company becomes insolvent.
Advertising	'
	Advertising - All advertising costs are expensed as incurred.
Share-Based Compensation	'
	Share-Based Compensation - Compensation expense for awards of equity instruments is recognized on a straight-line basis over the requisite service period based on the grant date fair value estimated in accordance with the provision of Financial Accounting Standards Board (“FASB”) Accounting Standards Codifications (“ASC”) 718 “Compensation-Stock Compensation”’ Share-based compensation expense is included in Salaries and Related expenses in the consolidated statements of operations. The grant date fair value of stock options is estimated using the Black-Scholes option pricing model using assumptions for the expected option term, expected price volatility, risk-free interest rate, and expected dividend yield.
Segment Reporting	'
	Segment Reporting - The Company acts as an independent community financial services provider, offering traditional banking and related financial services to individuals and business customers. The Bank offers a full array of commercial and retail financial services through its branch and automated teller machine networks. This includes taking time, savings and demand deposits, making of commercial, consumer and mortgage loans, and providing other financial services.
	Management does not separately allocate expenses, including the cost of funding loan demand, between the commercial, retail and mortgage banking operations of the Bank. As such, segregated financial information is not available and segment reporting would not be meaningful.
Guarantees	'
	Guarantees - The Company does not issue any guarantees that would require liability recognition or disclosure, other than its standby letters of credit. Standby letters of credit written are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Generally, all letters of credit, when issued have expiration dates within one year, which can be renewed depending upon the circumstances of the projects’ progress. The credit risk involved in issuing letters of credit is essentially the same as those that are involved in extending loan facilities to customers. The Company generally holds collateral and/or personal guarantees supporting these commitments. The Company has $480,000 standby letters of credit as of September 30, 2013. Management believes that the proceeds obtained through a liquidation of collateral and the enforcement of guarantees would be sufficient to cover the potential amount of future payment required under the corresponding guarantees. The current amount of the liability as of September 30, 2013 for guarantees under standby letters of credit issued is not material.
Comprehensive Income	'
	Comprehensive Income - Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gains and losses on available for sale securities net of taxes, are reported as a separate component of the equity section of the statement of financial condition, such items, along with net income, are components of comprehensive income.
Bank Owned Life Insurance	'
	Bank Owned Life Insurance - The Company purchased single-premium life insurance policies on certain employees of the Company. Appreciation in the cash surrender value of the insurance policies is classified in non-interest income.
Core Deposit Intangible	'
	Core Deposit Intangible - The Company recognized a core deposit intangible as a result of the merger with WHG Bancshares Corporation in 2002. This deposit base is assumed to decay over time as funds are withdrawn by customers. Amortization is calculated using algebraic formulas taking into account current portfolio costs and the current short term LIBOR.
	(dollars in thousands)	As of			As of
		September 30,			September 30,
		2013			2012
	Core Deposit Intangible	$	630		$	630
	Accumulated Amortization		(605	)		(593	)
	Net Balance	$	25		$	37
	Aggregate Amortization Expense
	For the year ended September 30, 2013	$	12
	For the year ended September 30, 2012		14
	Estimated Amortization Expense
	For the year ending September 30, 2014		12
	For the year ending September 30, 2015		13
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements - In February 2013 FASB issued ASU 2013-02, “Comprehensive Income (Topic 220) – Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” The objective of the new guidance is to improve the transparency of reporting reclassifications out of accumulated other comprehensive income (“OCI”) by requiring entities to present in one place information about significant amounts reclassified and, in come cases, to provide cross references to related footnote disclosures. The amendments do not change the current requirements for reporting net income or OCI, nor do they require new information to be disclosed. The amendment was applied prospectively and was effective for public entities in both interim and annual reporting periods beginning after December 15, 2012.
Recent Developments	'
	Recent Developments On June 13, 2013, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with F.N.B. Corporation (“FNB”), the parent company of First National Bank of Pennsylvania (“FNB Bank”). Pursuant to the Merger Agreement, the Company will merge with and into FNB (the “Merger”). Promptly following consummation of the Merger, it is expected that Baltimore County Savings Bank will merge with and into FNB Bank. In the Merger, shareholders of the Company will receive 2.080 shares (the “Exchange Ratio”) of FNB common stock for each common share of the Company they own. Outstanding Company stock options and share awards relating to Company common shares will be converted into options and share awards relating to shares of FNB common stock upon consummation of the Merger, subject to adjustments based on the Exchange Ratio. Consummation of the Merger is subject to certain conditions, including, among others, approval of the Merger by the Company’s shareholders, the receipt of all required governmental filings and regulatory approvals and expiration of applicable waiting periods, accuracy of specified representations and warranties of each party, the performance in all material respects by each party of its obligations under the Merger Agreement, effectiveness of the registration statement to be filed by FNB with the SEC to register shares of FNB common stock to be offered to Company shareholders, receipt of tax opinions, and the absence of any injunctions or other legal restraints. Currently, the Merger is expected to be completed in the first quarter of calendar 2014.
	The Company and FNB have become aware of the filing of a complaint on December 16, 2013 in Circuit Court in Baltimore County, Maryland, against the Company, each of the Company’s directors, and FNB. The complaint purports to be a class action filed on behalf of the holders of Company common stock arising from certain alleged actions by the named parties in connection with the previously announced proposed merger of the Company with and into FNB. The Company and FNB believe the factual allegations in the complaint are without merit and intend to defend vigorously against the allegations in the complaint.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Sep. 30, 2013
Basic and Diluted Weighted Average Shares Outstanding	'
	The basic and diluted weighted average shares outstanding for the years ended September 30, 2013 and 2012 are as follows:
		2013
		Income (Loss)			Shares			Per Share
		(Numerator)			(Denominator)			Amount
		( in thousands except per share data)
	Basic EPS
	Net Income available to shareholders	$	1,820			3,110		$	0.58
	Diluted EPS
	Effect of dilutive shares		—			124			(.02	)
	Net Income available to shareholders	$	1,820			3,234		$	0.56
		2012
	Basic EPS
	Net Income available to shareholders	$	1,800			3,102			$0.58
	Diluted EPS
	Effect of dilutive shares		—			96			(0.02	)
	Net Income available to shareholders	$	1,800			3,198		$	0.56
Core Deposit Intangible and Amortization Expense	'
	Amortization is calculated using algebraic formulas taking into account current portfolio costs and the current short term LIBOR.
	(dollars in thousands)	As of			As of
		September 30,			September 30,
		2013			2012
	Core Deposit Intangible	$	630		$	630
	Accumulated Amortization		(605	)		(593	)
	Net Balance	$	25		$	37
	Aggregate Amortization Expense
	For the year ended September 30, 2013	$	12
	For the year ended September 30, 2012		14
	Estimated Amortization Expense
	For the year ending September 30, 2014		12
	For the year ending September 30, 2015		13

Investment_Securities_Availabl1

Investment Securities Available for Sale (Tables)	12 Months Ended
	Sep. 30, 2013
Summary of Investment Securities By Maturity	'
	The following is a summary of investment securities by maturity:
		September 30, 2013
	(in thousands)	Amortized		Fair
		Cost		Value
	Available for sale:
	Corporate Bonds
	Due within 12 months	$	—	$	—
	Due beyond 12 months but within five years		1,380		1,364
	Due beyond five years but within ten years		3,500		3,290
	Due beyond ten years		—		—
	Total Corporate Bonds		4,880		4,654
	Equity Investments		100		100
	Total Investment Securities	$	4,980	$	4,754
Investment securities	'
Amortized Cost and Estimated Fair Values of Securities	'
	The amortized cost and estimated fair values of investment securities available for sale are as follows as of September 30, 2013 and, 2012:
	(in thousands)	Amortized		Gross			Gross			Estimated
		Cost		Unrealized			Unrealized			Fair
				Gains			Losses			Value
	Available for sale:
	30-Sep-13
	Corporate Bonds	$	4,880	$	—		$	(226	)	$	4,654
	Equity Investments		100		—			—			100
		$	4,980	$	—		$	(226	)	$	4,754
	September 30, 2012
	Corporate Bonds		4,880	$	—		$	(352	)	$	4,528
	Equity Investments		100		—			—			100
		$	4,980	$	—		$	(352	)	$	4,628
Securities with Unrealized Losses and Length of Time Individual Security has been in Continuous Unrealized Loss Position	'
	Below is a schedule of investment securities with unrealized losses as of September 30, 2013 and 2012 and the length of time the individual security has been in a continuous unrealized loss position:
		September 30, 2013
		Less than 12 months					12 months or more						Total
	(in thousands)	Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Losses			Value			Losses			Value		Losses
	Corporate Bonds	$	—	$	—		$	4,654		$	(226	)	$	4,654	$	(226	)
	Total temporarily impaired securities	$	—	$	—		$	4,654		$	(226	)	$	4,654	$	(226	)
		September 30, 2012
		Less than 12 months					12 months or more						Total
	(in thousands)	Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Losses			Value			Losses			Value		Losses
	Corporate Bonds	$	—	$	—		$	4,528		$	(352	)	$	4,528	$	(352	)
	Total temporarily impaired securities	$	—	$	—		$	4,528		$	(352	)	$	4,528	$	(352	)
Mortgage-Backed Securities	'
Amortized Cost and Estimated Fair Values of Securities	'
	The amortized cost and estimated fair values of mortgage-backed securities available for sale are as follows as of September 30, 2013 and 2012:
	(in thousands)	Amortized		Gross			Gross			Estimated
		Cost		Unrealized			Unrealized			Fair
				Gains			Losses			Value
	Available for sale:
	September 30, 2013
	GNMA certificates	$	3,313	$	71		$	—		$	3,384
	Private label collateralized mortgage obligations		5,542		—			(928	)		4,614
	Collateralized mortgage obligations		188,426		399			(7,000	)		181,825
	FNMA certificates		22,168		492			(620	)		22,040
	FHLMC participating certificates		8,194		234			(241	)		8,187
		$	227,643	$	1,196		$	(8,789	)	$	220,050
	September 30, 2012
	GNMA certificates	$	3,416	$	1		$	—		$	3,417
	Private label collateralized mortgage obligations		11,259		10			(2,235	)		9,034
	Collateralized mortgage obligations		178,948		3,781			—			182,729
	FNMA certificates		11,690		840			—			12,530
	FHLMC participating certificates		5,403		450			—			5,853
		$	210,716	$	5,082		$	(2,235	)	$	213,563
Securities with Unrealized Losses and Length of Time Individual Security has been in Continuous Unrealized Loss Position	'
	Below is a schedule of mortgage-backed securities available for sale with unrealized losses as of September 30, 2013 and 2012 and the length of time the individual security has been in a continuous unrealized loss position.
		September 30, 2013
		Less than 12 months					12 months or more						Total
	(in thousands)	Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Losses			Value			Losses			Value		Losses
	Private label collateralized mortgage obligations	$	875	$	(2	)	$	3,739			(926	)	$	4,614	$	(928	)
	Collateralized mortgage obligations		161,504		(7,000	)		—			—			161,504		(7,000	)
	FNMA Certificates		13,862		(620	)		—			—			13,862		(620	)
	FHLMC Certificates		4,592		(241	)		—		$	—			4,592		(241	)
	Total temporarily impaired securities	$	180,833	$	(7,863	)	$	3,739		$	(926	)	$	184,572	$	(8,789	)
		September 30, 2012
		Less than 12 months					12 months or more						Total
	(in thousands)	Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Losses			Value			Losses			Value		Losses
	Private label collateralized mortgage obligations	$	—	$	—		$	7,673		$	(2,235	)	$	7,673	$	(2,235	)
	Total temporarily impaired securities	$	—	$	—		$	7,673		$	(2,235	)	$	7,673	$	(2,235	)

Loans_Receivable_Tables

Loans Receivable (Tables)	12 Months Ended
	Sep. 30, 2013
Loan Receivable	'
	Loans receivable at September 30, 2013 and 2012 consist of the following:
		September 30,
	(in thousands)	2013			2012
	Single-family residential mortgages	$	63,769		$	76,823
	Single-family rental property loans		59,272			62,111
	Commercial real estate loans		145,672			141,364
	Construction loans		25,917			21,396
	Commercial loans secured		161			71
	Commercial loans unsecured		52			60
	Commercial lease loans		—			20
	Commercial lines of credit		7,521			9,952
	Automobile loans		132			437
	Home equity lines of credit		33,443			32,840
	Other consumer loans		1,496			1,714
			337,435			346,788
	Less - undisbursed portion of loans in process		(7,966	)		(6,467	)
	- unearned interest		(1	)		(3	)
	- deferred loan origination costs and (fees)		272			(38	)
	- allowance for loans losses		(5,604	)		(5,470	)
		$	324,136		$	334,810
Interest Income that would have been Recorded under Original Terms of Non-accrual Loans and Interest Actually Recognized	'
	Interest income that would have been recorded under the original terms of non-accrual loans and the interest actually recognized for the years ended September 30, are summarized below:
		Years Ended September 30,
	(in thousands)	2013			2012
	Interest income that would have been recognized	$	837		$	1,065
	Interest income recognized		251			439
	Interest income not recognized	$	586		$	626
Summary of Activity of Loans Receivable from Related Parties	'
	The following table presents a summary of the activity of loans receivable from related parties:
		Years Ended September 30,
	(in thousands)	2013			2012
	Beginning balance	$	256		$	254
	New loans		33			31
	Loan repayments		(30	)		(29	)
	Ending balance	$	259		$	256
Financial Instruments Whose Contract Amounts Represents Credit Risk	'
	Financial Instruments Whose Contract Amounts Represents Credit Risk	Contract Amount at September 30,
	(in thousands)	2013			2012
	Standby letters of credit	$	480		$	390
	Commercial lines of credit		6,356			6,670
	Home equity lines of credit		24,295			24,850
	Loan commitments, fixed rates		549			10,758
	Overdraft protection lines of credit		672			705

Disclosures_About_Credit_Quali1

Disclosures About Credit Quality and the Allowance for Losses on Loans (Tables)	12 Months Ended
	Sep. 30, 2013
Allowance for Losses and Recorded Investment In Loans	'
	The Allowance for Losses and Recorded Investment in loans for the twelve months ended September 30, 2013 are as follows:
	Allowance for Losses on Loans
	For the period ended September 30, 2013
	(Dollars in thousands)
			Residential			Residential			Commercial			Construction			Home			Automobile		Other			Total
						Rental									Equity					Consumer
			Loans			Loans			Loans			Loans			Loans			Loans		Loans			Loans
	Twelve Months ended September 30, 2013
	Allowance for losses on loans:
	Beginning Balance		$	140		$	2,232		$	1,477		$	1,492		$	119		$	—	$	10			$5,470
	Charge-Offs			—			(408	)		—			(636	)		—			—		(4	)		(1,048	)
	Recoveries			—			—			8			—			—			—		74			82
	Provisions			(74	)		719			334			245			(44	)		—		(80	)		1,100
	Ending Balance		$	66		$	2,543		$	1,819		$	1,101		$	75		$	—	$	—			$5,604
	Ending balance individually evaluated for impairment		$	1,454		$	7,803		$	8,499		$	2,994		$	265		$	—	$	—			$21,015	(1)
	Ending balance collectively evaluated for impairment		$	62,315		$	51,469		$	144,907		$	22,923		$	33,178		$	132		1,496			316,420	(1)
	Ending Allowance balance for loans individually evaluated for impairment		$	—		$	1,441		$	118		$	634		$	—		$	—		—			$2,193
	Ending Allowance balance for loans collectively evaluated for impairment		$	66		$	1,102		$	1,701		$	467		$	75		$	—	$	—			$3,411
	-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowance for loan losses.
	The Allowance for Losses on Loans and Recorded Investment in loans for the twelve months ended September 30, 2012 are as follows:
	Allowance for Losses on Loans
	For the period ended September 30, 2012
	(Dollars in thousands)
			Residential			Residential			Commercial			Construction			Home			Automobile		Other			Total
						Rental									Equity					Consumer
			Loans			Loans			Loans			Loans			Loans			Loans		Loans			Loans
	Twelve Months ended September 30, 2012
	Allowance for losses on Loans:
	Beginning Balance		$	205		$	1,595		$	1,513		$	1,267		$	168		$	—	$	20		$	4,768
	Charge-Offs			(9	)		(513	)		(35	)		—			—			—		(14	)		(571	)
	Recoveries			1			5			16			—			—			—		51			73
	Provisions			(57	)		1,145			(17	)		225			(49	)		—		(47	)		1,200
	Ending Balance		$	140		$	2,232		$	1,477		$	1,492		$	119		$	—	$	10		$	5,470
	Ending balance individually evaluated for impairment		$	1,163			7,135		$	5,560		$	8,267		$	210		$	—	$	—		$	22,335	(1)
	Ending balance collectively evaluated for impairment		$	75,660		$	54,976		$	145,907		$	13,129		$	32,630		$	437	$	1,714		$	324,453	(1)
	Ending Allowance balance for loans individually evaluated for impairment		$	—		$	840		$	111		$	1,071		$	—		$	—		—		$	2,022
	Ending Allowance balance for loans collectively evaluated for impairment		$	140		$	1,392		$	1,366		$	421		$	119		$	—	$	10		$	3,448
	-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowance for loan losses.
Classification of Loans	'
	The risk ratings of loans as of September 30, 2013 and 2012 are as follows:
	September 30, 2013
	(Dollars in thousands)
			Residential			Residential			Commercial			Construction			Home			Automobile		Other
						Rental									Equity					Consumer
			Loans			Loans			Loans			Loans			Loans			Loans		Loans			Total
	Grade
	Pass (2)		$	61,533		$	50,531		$	139,171		$	21,523		$	32,534		$	132	$	1,461		$	306,885
	Special Mention			782			991			5,736			1,400			644			—		35			9,588
	Substandard			1,454			7,750			8,499			2,994			265			—		—			20,962
	Doubtful			—			—			—			—			—			—		—			—
	Loss			—			—			—			—			—			—		—			—
	Total (1)		$	63,769		$	59,272		$	153,406		$	25,917		$	33,443		$	132	$	1,496		$	337,435
	September 30, 2012
	(Dollars in thousands)
			Residential			Residential			Commercial			Construction			Home			Automobile		Other
						Rental									Equity					Consumer
			Loans			Loans			Loans			Loans			Loans			Loans		Loans			Total
	Grade
	Pass (2)		$	76,166		$	49,817		$	141,413		$	13,129		$	32,840		$	437	$	1,714		$	315,516
	Special Mention			119			3,824			2,465			—			—			—		—			6,408
	Substandard			538			8,470			7,589			8,267			—			—		—			24,864
	Doubtful			—			—			—			—			—			—		—			—
	Loss			—			—			—			—			—			—		—			—
	Total (1)		$	76,823		$	62,111		$	151,467		$	21,396		$	32,840		$	437	$	1,714		$	346,788
	-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loans origination fees and costs and allowance for loan losses.
	-2	Transitional loans are included in the Pass category for classification purposes.
Impaired Loans	'
	Impaired loans for the twelve months ended September 30, 2013 are as follows:
	Impaired Loans
	As of September 30, 2013
	(Dollars in thousands)
			Recorded			Unpaid Principal			Related
			Investment			Balance			Allowance
	Loans without specific valuation allowances:
	Residential Loan		$	1,454		$	1,454		$	—
	Residential Rental Loans			1,296			1,296			—
	Commercial Loans			6,897			6,897			—
	Construction Loans			—			—			—
	Home Equity Loans			265			265			—
	Consumer Loans			—			—			—
	Other Loans			—			—			—
	Total		$	9,912		$	9,912		$	—
	Loans with specific allowance recorded:
	Residential Loans		$	—		$	—		$	—
	Residential Rental Loans			6,507			6,507			1,441
	Commercial Loans			1,602			1,602			118
	Construction Loans			2,994			2,994			634
	Home Equity Loans			—			—			—
	Consumer Loans			—			—			—
	Other Loans			—			—			—
	Total		$	11,103		$	11,103		$	2,193
	Impaired loans for the twelve months ended September 30, 2012 are as follows:
	Impaired Loans
	As of September 30, 2012
	(Dollars in thousands)
			Recorded			Unpaid Principal			Related
			Investment			Balance			Allowance
	Loans without specific valuation allowances:
	Residential Loan		$	1,163		$	1,163		$	—
	Residential Rental Loans			2,123			2,123			—
	Commercial Loans			3,925			3,925			—
	Construction Loans			2,775			2,775			—
	Home Equity Loans			210			210			—
	Consumer Loans			—			—			—
	Other Loans			—			—			—
	Total		$	10,196		$	10,196		$	—
	Loans with specific allowance recorded:
	Residential Loans		$	—		$	—		$	—
	Residential Rental Loans			5,012			5,012			840
	Commercial Loans			1,635			1,635			111
	Construction Loans			5,492			5,492			1,071
	Home Equity Loans			—			—			—
	Consumer Loans			—			—			—
	Other Loans			—			—			—
	Total		$	12,139		$	12,139		$	2,022
Average Recorded Investment and Interest Income Recognized On Impaired Loans	'
	The following presents information related to the average recorded investment and interest income recognized on impaired loans for the twelve months ended September 30, 2013 and September 30, 2012:
			Twelve Months Ended						Twelve Months Ended
			30-Sep-13						30-Sep-12
	(dollars in thousands)		Average			Interest			Average			Interest
			Recorded			Income			Recorded			Income
			Investment			Recognized			Investment			Recognized
	Loans without specific valuation allowances:
	Residential Loans		$	1,484		$	73		$	1,174		$	64
	Residential Rental Loans			1,298			—			2,125			51
	Commercial Loans			7,037			342			3,993			105
	Construction Loans			—			—			2,988			142
	Home Equity Loans			265			8			212			6
	Consumer Loans			—			—			—			—
	Other Loans			—			—			—			—
	Total		$	10,084		$	423		$	10,492		$	368
	Loans with specific allowance recorded:
	Residential Loans		$	—		$	—		$	—		$	—
	Residential Rental Loans			6,498			327			5,155			288
	Commercial Loans			1,640			94			1,669			96
	Construction Loans			2,994			127			5,494			153
	Home Equity Loans			—			—			—			—
	Consumer Loans			—			—			—			—
	Other Loans			—			—			—			—
	Total		$	11,132		$	548		$	12,318		$	537
	-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowances for loan losses.
Past Due Loans	'
	Past due loans as of September 30, 2013 and 2012 are as follows:
	Credit Quality Information
	Age Analysis of Past Due Loans
	As of September 30, 2013
			30-59 Days			60-89			Non-Accrual			Total			Current			Total Loans		Non-			Loans
			past due			Days past						past due								Accrual			Greater than
						due						and Non-Accrual								Loans that			90 days and
																				are Current			Accruing
	Residential Loans		$	753			89			718			1,560			62,209			63,769		347		$	—
	Residential Rental Loans			—			—			3,013			3,013			56,259			59,272		792			—
	Commercial Loans			—			—			1,573			1,573			151,833			153,406		378			—
	Construction Loans			—			—			2,994			2,994			22,923			25,917		2,994			—
	Home Equity Loans			381			—			142			523			32,920			33,443		82			—
	Automobile Loans			—			—			—			—			132			132		—			—
	Other Loans			2			35			—			37			1,459			1,496		—			—
	Total (1)		$	1,136			124			8,440			9,700			327,735			337,435		4,593		$	—
	Credit Quality Information
	Age Analysis of Past Due Loans
	As of September 30, 2012
			30-59 Days			60-89			Non-Accrual			Total			Current			Total Loans		Non-			Loans
			past due			Days past						past due								Accrual			Greater than
						due						and Non-Accrual								Loans that			90 days and
																				are Current			Accruing
	Residential Loans		$	360		$	82		$	472		$	914		$	75,909		$	76,823	$	—		$	—
	Residential Rental Loans			180			340			2,128			2,648			59,463			62,111		741
	Commercial Loans			—			—			2,994			2,994			148,473			151,467		1,311			—
	Construction Loans			—			—			7,551			7,551			13,845			21,396		294			—
	Home Equity Loans			119			81			—			200			32,640			32,840		—			—
	Automobile Loans			—			—			—			—			437			437		—			—
	Other Loans			3			—			—			3			1,711			1,714		—			—
	Total (1)		$	662		$	503		$	13,145		$	14,310		$	332,478		$	346,788	$	2,346		$	—
	-1	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowances for loan losses.
Loans on Nonaccrual Status	'
	Loans on Nonaccrual Status
	(Dollars in Thousands)
			September 30,			September 30,
			2013			2012
	With no related allowance recorded:
	Residential Loans		$	718		$	472
	Residential Rental Loans			1,296			2,039
	Commercial Loans			1,573			2,994
	Constructions Loans			—			4,557
	Home Equity Loans			—			—
	Automobile Loans			—			—
	Other Loans			—			—
			$	3,587		$	10,062
	With an allowance recorded:
	Residential Loans		$	—		$	—
	Residential Rental Loans			1,717			89
	Commercial Loans			—			—
	Constructions Loans			2,994			2,994
	Home Equity Loans			142			—
	Automobile Loans			—			—
	Other Loans			—			—
			$	4,853		$	3,083
	Total Nonaccrual Loans		$	8,440	(1)	$	13,145	(1)
	-1	Includes Troubled Debt Restructurings (TDR’s) of $1.2 million and $700,000 at September 30, 2013 and 2012, respectively, which were not delinquent. Reporting guidance requires disclosure of these loans as nonaccrual even though they may be current in terms of principal and interest payments. As of September 30, 2013 and 2012, the Company had total TDR’s of $7.2 million and $9.3 million, respectively.
Troubled Debt Restructurings Modifications	'
	The following schedule represents new modifications added as TDR’s during the fiscal years ended September 30, 2013 and 2012, respectively:
	Modifications
	During periods ended September 30, 2013 and 2012
			2013									2012
			Number of			Pre-			Post-			Number of			Pre-			Post-
			Contracts			Modification			Modification			Contracts			Modification			Modification
						Outstanding			Outstanding						Outstanding			Outstanding
						Recorded			Recorded						Recorded			Recorded
						Investments			Investments						Investments			Investments
	Troubled Debt Restructurings
	Residential-Prime			5		$	1,232		$	1,232			1		$	90		$	90
	Commercial			—			—			—			5			2,449			2,449
	Construction			—			—			—			—			—			—
	Consumer-Other			—			—			—			—			—			—
	Finance leases			—			—			—			—			—			—

MortgageBacked_Securities_Avai1

Mortgage-Backed Securities Available for Sale (Tables)	12 Months Ended
	Sep. 30, 2013
Activity in Other than Temporary Impairment Related to Credit Losses	'
	The following shows the activity in “OTTI” related to credit losses for twelve months ended September 30:
		Twelve Months Ended
		September 30
		2013			2012
	Balance at Beginning of Period	$	733		$	400
	Additional OTTI taken for credit losses		—			370
	Charge-offs due to sale		(332	)		—
	Charge-offs due to payment shortages		(158	)		(37	)
	Balance at End of Period	$	243		$	733

Premises_and_Equipment_net_Tab

Premises and Equipment, net (Tables)	12 Months Ended
	Sep. 30, 2013
Premises and Equipment	'
	Premises and equipment at September 30, 2013 and 2012 are summarized by major classification as follows:
		September 30,
	(in thousands)	2013			2012			Life
	Office Building	$	11,608		$	11,508			40 Years
	Leasehold improvements		1,341			1,234			7-31 Years
	Furniture, fixtures and equipment		9,174			9,641			5-10 Years
			22,123			22,383
	Accumulated depreciation		(12,215	)		(12,303	)
		$	9,908		$	10,080
Minimum Rental Commitments under Noncancellable Leases	'
	At September 30, 2013, minimum rental commitments under noncancellable leases are as follows:
	Years Ended September 30,	Amount
	(in thousands)
	2014	$	1,156
	2015		1,229
	2016		1,309
	2017		1,325
	2018		1,343
	After 2018		11,253
		$	17,615

Deposits_Tables

Deposits (Tables)	12 Months Ended
	Sep. 30, 2013
Summary of Deposits	'
	Deposits are summarized as follows at September 30, 2013 and 2012:
		2013					2012
	(dollars in thousands)	Amount		%			Amount		%
	Type of Account
	Checking	$	71,681		13.18	%	$	71,024		12.51	%
	Non-interest bearing Checking		38,462		7.07			35,264		6.26
	Money market		79,363		14.6			94,229		16.64
	Savings		100,758		18.53			95,227		16.81
	Certificates		253,478		46.61			270,549		47.77
			543,742		99.99			566,293		99.99
	Accrued interest payable		27		0.01			63		0.01
		$	543,769		100	%	$	566,356		100	%
Scheduled Maturities of Certificates of Deposit	'
	At September 30, 2013, scheduled maturities of certificates of deposit are as follows:
		(in thousands)
	2014	$	87,351
	2015		98,336
	2016		26,789
	2017		30,264
	2018		10,728
		$	253,478
Interest Expense on Deposits	'
	Interest expense on deposits for the years ended September 30, 2013 and 2012 is as follows:
		2013		2012
	(in thousands)
	Checking	$	242	$	417
	Money market		236		564
	Passbook savings		112		213
	Certificates		4,119		5,139
		$	4,709	$	6,333

Employee_Stock_Ownership_Plan_

Employee Stock Ownership Plan (Tables)	12 Months Ended
	Sep. 30, 2013
Employee Stock Ownership Plan Shares	'
	The ESOP shares were as follows as of September 30:
		2013		2012
	Shares released and allocated		136,285		128,138
	Unearned shares		82,206		90,353
			218,491		218,491
	Fair value of unearned shares	$	2,005,826	$	1,237,836

Stock_Option_Plans_Tables

Stock Option Plans (Tables)	12 Months Ended
	Sep. 30, 2013
Shares under Stock Option Plans	'
	The following table summarizes the shares under the Company’s stock option plans at September 30, 2013:
		Number of Shares			Exercise			Weighted Average
					Price			Contractual Life
								(in years)
			10,528			28.41			3.25
			5,264			17.95			4.2
			22,193			11.61			4.25
			10,921			8.25			5.75
			175,917			10.29			7
			15,052			13.74			8.5
Activity Related to Options under All Plans	'
	The following tables present the activity related to options under all plans for the period ended September 30, 2013:
		Shares			Weighted Average
					Exercise Price
	Outstanding at September 30, 2011		255,211		$	12.53
	Options exercised		—			—
	Options expired		(29,610	)		(21.61	)
	Forfeited		—			—
	Granted		15,052			13.74
	Outstanding at September 30, 2012		240,653		$	11.49
	Options exercised		(778	)		(9.55	)
	Options expired		—			—
	Forfeited		—			—
	Granted		—			—
	Outstanding at September 30, 2013		239,875		$	11.5
	Exercisable at September 30, 2013		140,427		$	12.08
Weighted Average Assumptions used in Black-Scholes-Merton Option Pricing Model for Option Granted	'
	The following weighted average assumptions were used in the Black-Scholes-Merton option pricing model for the options granted in the year ended September 30, 2012:
		2012
	Dividend Yield		0	%
	Expected volatility		21.97	%
	Risk-free interest rate		0.99	%
	Expected lives		4.0 years

Regulatory_Capital_Tables

Regulatory Capital (Tables)	12 Months Ended
	Sep. 30, 2013
Reconciliation of Total Equity Per Consolidated Financial Statements to Capital Amounts	'
	The following table provides a reconciliation of total equity per the consolidated financial statements to the Bank’s capital amounts reflected in the above table:
			September 30,
			2013			2012
			(dollars in thousands)
	Total equity		$	49,800		$	55,139
	Adjustment for accumulated other comprehensive loss (income)			4,686			(1,511	)
	Adjustment for intangible assets			(25	)		(37	)
	Adjustment for disallowed deferred tax asset			(206	)		(145	)
	Adjustment for parent company equity			10,326			10,973
	Tangible, Tier 1 and Core Capital			64,581			64,419
	Allowance for loan losses			5,604			3,620
	Total risk-based capital		$	70,185		$	68,039
Banks	'
Capital Position and Current Capital Requirements	'
	The following table presents the Bank’s capital position based on the September 30 financial statements and the current capital requirements.
			Actual						Minimum					Minimum
									For Capital					To Be Well
									Adequacy Purposes					Capitalized Under
														Prompt Corrective
														Action Provisions
			Amount			Ratio			Amount		Ratio			Amount		Ratio
			(dollars in thousands)
	September 30, 2013
	Leverage Capital (1)		$	66,774			10.7	%	$	24,971		4	%	$	31,214		5	%
	Tier I capital (2)			66,774			17.71			15,082		N/A			22,623		6
	Risk-Based Capital (2)			70,185			18.61			30,164		8			37,705		10
	September 30, 2012
	Leverage Capital (1)			64,419			10.07			25,600		4			32,001		5
	Tier I capital (2)			64,419			16.69			N/A		N/A			23,163		6
	Risk-Based Capital (2)			68,039			17.62			30,884		8			38,605		10
	-1	To average total assets
	-2	To risk-weighted assets
BCSB Bancorp Inc	'
Capital Position and Current Capital Requirements	'
	The following table presents BCSB Bancorp’s capital position based on the September 30 financial statements and the current capital requirements:
			Actual						Minimum					Minimum
									For Capital					To Be Well
									Adequacy Purposes					Capitalized Under
														Prompt Corrective
														Action Provisions
			Amount			Ratio			Amount		Ratio			Amount		Ratio
			(dollars in thousands)
	September 30, 2013
	Leverage Capital (1)		$	54,256			8.49	%	$	25,564		4	%	$	31,955		5	%
	Tier I capital (2)			54,256			14.32			15,153		N/A			22,730		6
	Risk-Based Capital (2)			57,667			15.22			30,307		8			37,884		10
	September 30, 2012
	Leverage Capital (1)			53,446			8.39			25,487		4			31,858		5
	Tier I capital (2)			53,446			13.74			N/A		N/A			23,330		6
	Risk-Based Capital (2)			57,066			14.68			31,107		8			38,884		10
	-1	To average total assets
	-2	To risk-weighted assets

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Sep. 30, 2013
Income Tax Provision	'
	The income tax provision consists of the following for the years ended September 30,:
		2013			2012
		(dollars in thousands)
	Current expense (benefit)	$	676		$	485
	Deferred expense (benefit)		647			435
	Total tax expense(benefit)	$	1,323		$	920
Tax Effects of Temporary Differences that Give Rise to Significant Positions of Deferred Tax Assets and Deferred Tax Liabilities	'
	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at September 30, are as follows:
		2013			2012
	Deferred Tax Assets:
	ESOP and MRP	$	171		$	188
	Deferred compensation		1,620			1,446
	Other-than-temporary-impairment on securities available for sale		96			271
	Allowance for loan losses		2,211			2,158
	Allowance for uncollected interest		281			333
	Unrealized holding losses on securities		3,053			—
	Net operating loss carry forward		1,369			1,988
	Other		—			79
	Total gross deferred tax assets		8,801			6,463
	Deferred Tax Liabilities:
	Federal Home Loan Bank of Atlanta stock dividends		(213	)		(213	)
	Depreciation		(220	)		(288	)
	Unrealized holding gains on securities		—			(984	)
	Total gross deferred tax liabilities		(433	)		(1,485	)
	Net Deferred Tax Assets	$	8,368		$	4,978
Amount Computed by Applying Statutory Federal Income Tax Rate to (Loss) Income Before Taxes	'
	The amount computed by applying the statutory federal income tax rate to income before taxes is different than the taxes provided for the following reasons:
		For the Years Ended September 30,
		2013						2012
	(dollars in thousands)	Amount			Percent			Amount			Percent of
					of						Pretax
					Pretax						Income
					Income
	Statutory federal income tax rate	$	1,069			34	%	$	925			34	%
	Changes Resulting From:
	State income tax net of Federal income tax benefit		239			7.61			148			5.44
	Income from life insurance		(202	)		(6.43	)		(218	)		(8.01	)
	Non-deductible merger related expense		169			5.38			—			—
	Other		48			1.53			65			2.39
		$	1,323			42.09	%	$	920			33.82	%

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Sep. 30, 2013
Financial Instruments Measured at Fair Value on Recurring Basis	'
	The following tables present the financial instruments measured at fair value by class on the recurring basis as of September 30, 2013 and September 30, 2012 on the Consolidated Statement of Financial Condition utilizing the hierarchy previously discussed.
					At September 30, 2013						Total changes
											In fair values
											Included in
											Period
	($ in thousands)		Total		Level 1		Level 2		Level 3		Earnings
	Loans held for sale		$	—	$	—	$		$	—	$	—
	Equity Investments			100		—		—		100		—
	Corporate Bonds available for sale			4,654		—		4,654		—		—
	GNMA certificates available for sale			3,384		—		3,384		—		—
	FNMA certificates available for sale			22,040		—		22,040		—		—
	FHLMC certificates available for sale			8,187		—		8,187		—		—
	Private label collateralized mortgage obligations available for sale			4,614		—		4,614		—		—
	Collateralized mortgage obligations available for sale			181,825		—		181,825		—		—
			$	224,804	$	—	$	224,704	$	100	$	—
					At September 30, 2012						Total changes
											In fair values
											Included in
											Period
	($ in thousands)		Total		Level 1		Level 2		Level 3		Earnings
	Loans held for sale		$	806		—	$	806	$	—	$	—
	Equity Investments			100		—		—		100		—
	Corporate Bonds available for sale			4,528		—		4,528		—		—
	GNMA certificates available for sale			3,417		—		3,417		—		—
	FNMA certificates available for sale			12,530		—		12,530		—		—
	FHLMC certificates available for sale			5,853		—		5,853		—		—
	Private label collateralized mortgage obligations available for sale			9,034		—		9,034		—		370	(1)
	Collateralized mortgage obligations available for sale			182,729		—		182,729		—		—
			$	218,997	$	—	$	218,897	$	100	$	370	(1)
	-1	Represents other-than-temporary impairment charges taken during the fiscal year ended September 30, 2012.
Summary of Changes in Recorded Amount of Assets Classified as Level 3 in Fair Value Hierarchy	'
	The table below summarizes the changes in the recorded amount of assets classified as Level 3 in the fair value hierarchy at September 30, 2013:
	Beginning Balance		$	100,000
	Equity investment purchases			—
	Ending Balance		$	100,000
	The table below summarizes the changes in the recorded amount of assets classified as Level 3 in the fair value hierarchy at September 30, 2012:
	Beginning Balance		$	100,000
	Equity investment purchases			—
	Ending Balance		$	100,000
Impaired Loans, Foreclosed Real Estate and Repossessed Assets Classified as Level Three	'
	Impaired loans and Foreclosed Real Estate are classified as Level 3 within the valuation hierarchy.
	At September 30, 2013
	($ in thousands)		Total		Level 1		Level 2		Level 3
	Impaired Residential Loans		$	1,454	$	—	$	—	$	1,454
	Impaired Residential Rental Loans			6,362		—		—		6,362
	Impaired Commercial and Lease Loans			8,381		—		—		8,381
	Impaired Construction Loans			2,360		—		—		2,360
	Impaired Home Equity Loans			265		—		—		265
	Premises and equipment held for sale			—		—		—		—
	Foreclosed Real Estate			2,861		—		—		2,861
	Total		$	21,683	$	—	$	—	$	21,683
	At September 30, 2012
	($ in thousands)		Total		Level 1		Level 2		Level 3
	Impaired Residential Loans		$	1,163	$	—	$	—	$	1,163
	Impaired Residential Rental Loans			6,295		—		—		6,295
	Impaired Commercial and Lease Loans			5,449		—		—		5,449
	Impaired Construction Loans			7,196		—		—		7,196
	Impaired Home Equity Loans			210		—		—		210
	Premises and equipment held for sale			208		—		—		208
	Foreclosed Real Estate			1,674		—		—		1,674
	Total		$	22,195	$	—	$	—	$	22,195

Disclosures_About_Fair_Value_o1

Disclosures About Fair Value of Financial Instruments (Tables)	12 Months Ended
	Sep. 30, 2013
Carrying Amounts and Estimated Fair Values of Financial Instruments	'
	The carrying amounts and estimated fair values of the Company’s financial instruments at September 30, 2013 are as follows:
		September 30, 2013
		Fair Value Measurement
	(dollars in thousands)	Carrying		Fair		Quoted		Significant		Significant
		Amount		Value		Prices in		Other		Unobservable
						Active		Observable		Inputs
						Markets for		Inputs		(Level 3)
						Identical		(Level 2)
						Assets or
						Liabilities
						(Level 1)
	Financial Assets
	Cash	$	8,073	$	8,073	$	8,073	$	—	$	—
	Interest-bearing deposits in other banks		11,534		11,534		11,534		—		—
	Federal Funds sold		6,847		6,847		6,847		—		—
	Investment securities available for sale		4,754		4,754		—		4,654		100
	Loans available for sale		—		—		—		—		—
	Loan Receivable
	Mortgage Loans		322,508		338,046		—		—		338,046
	Share Loans		439		439		—		—		439
	Consumer Loans		1,189		1,189		—		—		1,189
	Mortgage-backed securities-Available for Sale		220,050		220,050		—		220,050		—
	Federal Home Loan Bank of Atlanta Stock		771		771		771		—		—
	Federal Reserve Bank Stock		1,394		1,394		1,394		—		—
	Bank owned life insurance		17,473		17,473		17,473		—		—
	Accrued interest receivable		1,700		1,700		—		1,700		—
	Mortgage servicing rights		12		12		—		—		12
	Financial Liabilities
	Deposits	$	543,769	$	541,527		—	$	541,527		—
	Junior Subordinated Debt		17,011		17,011		—		17,011		—
	Accrued interest payable		27		27		—		27		—
	The carrying amounts and estimated fair values of the Company’s financial instruments at September 30, 2012 are as follows:
		September 30, 2012
		Fair Value Measurement
	(dollars in thousands)	Carrying		Fair		Quoted		Significant		Significant
		Amount		Value		Prices in		Other		Unobservable
						Active		Observable		Inputs
						Markets for		Inputs		(Level 3)
						Identical		(Level 2)
						Assets or
						Liabilities
						(Level 1)
	Financial Assets
	Cash	$	8,389	$	8,389	$	8,389	$	—	$	—
	Interest-bearing deposits in other banks		11,501		11,501		11,501		—		—
	Federal Funds sold		31,034		31,034		31,034		—		—
	Investment securities available for sale		4,628		4,628		—		4,528		100
	Loans available for sale		806		806		—		806		—
	Loan Receivable
	Mortgage Loans		332,665		358,297		—		—		358,297
	Share Loans		290		290		—		—		290
	Consumer Loans		1,855		1,816		—		—		1,816
	Mortgage-backed securities-Available for Sale		213,563		213,563		—		213,563		—
	Federal Home Loan Bank of Atlanta Stock		959		959		959		—		—
	Federal Reserve Bank Stock		1,381		1,381		1,381		—		—
	Bank owned life insurance		16,869		16,869		16,869		—		—
	Accrued interest receivable		2,024		2,024		—		2,024
	Mortgage servicing rights		53		53		—		—		53
	Financial Liabilities
	Deposits	$	566,356	$	567,848		—	$	567,848		—
	Junior Subordinated Debt		17,011		17,011		—		17,011		—
	Accrued interest payable		63		63		—		63		—

Changes_in_Accumulated_Other_C1

Changes in Accumulated Other Comprehensive (Loss) Income by Component. (Tables)	12 Months Ended
	Sep. 30, 2013
Component of Accumulated Other Comprehensive Income Net of Tax	'
	The following table presents each component of accumulated other comprehensive income (loss), net of tax, for fiscal year ended September 30, 2013:
	(dollars in thousands)		Net Unrealized			Total
			Gains
			and Losses on
			Investment
			Securities
	October 1, 2012		$	1,511		$	1,511
	Other Comprehensive Loss Before Reclassifications			(6,155	)		(6,155	)
	Amounts Reclassified from Accumulated Other Comprehensive Income net of tax $(27)			(42	)		(42	)
	Net Current-Period Other Comprehensive Loss			(6,197	)		(6,197	)
	September 30, 2013		$	(4,686	)	$	(4,686	)
	1	Amounts in parenthesis indicate debits
Reclassifications of Accumulated Other Comprehensive Income	'
	The following table presents the amounts reclassified out of each component of accumulated other comprehensive income (loss) for the twelve months ended September 30, 2013:
	Details about Accumulated Other		Amount			Affected Line Item in
	Comprehensive Income (Loss) Components (dollars in thousands)		Reclassified			the Statement Where Net
			from			Income is Presented
			Accumulated
			Other
			Comprehensive
			Income (Loss)
	Gain on Sale of Mortgage-Backed Securities		$	69		Gain on Sale of mortgage-
						backed securities
				(27	)	Income tax Expense
	Total Reclassification for the Period		$	42		Net of Tax

Condensed_Financial_Informatio1

Condensed Financial Information (Parent Company Only) (Tables)	12 Months Ended
	Sep. 30, 2013
Statements of Financial Condition	'
	Statements of Financial Condition
		September 30,
		2013			2012
		(in thousands)
	Assets
	Cash	$	1,358		$	2,341
	Interest bearing deposits in other banks		220			219
	Employee stock ownership plan loan		901			968
	Accrued interest receivable		35			38
	Investment in subsidiaries		63,188			67,355
	Prepaid and deferred income taxes		1,372			1,530
	Other assets		266			11
	Total assets	$	67,340		$	72,462
	Liabilities and Stockholders’ Equity
	Liabilities:
	Junior subordinated debentures	$	17,011		$	17,011
	Other liabilities		529			312
	Total Liabilities		17,540			17,323
	Total stockholders’ equity		49,800			55,139
	Total liabilities and stockholders’ equity	$	67,340		$	72,462
Statements of Operations	'
		Years Ended September 30,
		2013			2012
		(in thousands)
	Statements of Operations
	Interest and Fees on loans	$	48		$	52
	Other interest income		28			26
	Total interest income		76			78
	Interest expense on borrowings		613			644
	Net interest income (expense)		(537	)		(566	)
	Non-interest expense
	Professional fees		71			85
	Merger related expense		579			—
	Other expenses		324			171
	Total non-interest expense		974			256
	Loss before income tax benefit		(1,511	)		(822	)
	Income tax benefit		(345	)		(283	)
	Loss before equity in net income of subsidiary		(1,166	)		(539	)
	Equity in net income of subsidiary		2,986			2,339
	Net income	$	1,820		$	1,800
Statements of Cash Flows	'
		Years Ended September 30,
		2013			2012
		(in thousands)
	Statements of Cash Flows
	Net income	$	1,820		$	1,800
	Adjustments to reconcile net income to net cash (used) provided by Operating Activities
	Equity in net income of subsidiary		(2,986	)		(2,339	)
	Decrease in accrued interest receivable		3			—
	Decrease in prepaid and deferred income taxes		158			2,154
	Decrease in receivable from subsidiary		67			64
	(Increase) decrease in other assets		(256	)		9
	Increase in other liabilities		215			111
	Net cash (used) provided by operating activities		(979	)		1,799
		Years Ended September 30,
		2013			2012
		(in thousands)
	Cash Flows from Financing Activities
	Dividends from subsidiary		1,500			—
	Stock purchase		(68	)		(40	)
	Redemption of stock warrants		(1,442	)		—
	Exercised stock options		7
	Net cash used by financing activities		(3	)		(40	)
	(Decrease) increase in cash and cash equivalents		(982	)		1,759
	Cash and cash equivalents at beginning of period		2,560			801
	Cash and cash equivalents at end of period	$	1,578		$	2,560

Quarterly_Financial_Data_Unaud1

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Sep. 30, 2013
Summary of Unaudited Quarterly Financial Data	'
	Summarized unaudited quarterly financial data for the year ended September 30, 2013 is as follows:
	Operating Summary:
		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
		(in thousands except per share data)
	Interest Income	$	6,598	$	6,100	$	5,908	$	5,832
	Interest Expense		1,484		1,341		1,266		1,231
	Net Interest Income		5,114		4,759		4,642		4,601
	Provision for Loan Losses		500		450		150		—
	Net Interest Income after provision for loan losses		4,614		4,309		4,492		4,601
	Other Income		665		667		699		502
	Other Expenses		4,267		4,538		4,519		4,082
	Income before income tax expense		1,012		438		672		1,021
	Income tax expense		373		135		236		579
	Net income available to common shareholders	$	639	$	303	$	436	$	442
	Per share date:
	Basic earnings per share	$	0.21	$	0.09	$	0.14	$	0.14
	Diluted earnings per share	$	0.2	$	0.09	$	0.14	$	0.13
	Summarized unaudited quarterly financial data for the year ended September 30, 2012 is as follows:
	Operating Summary:
		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
		(in thousands except per share data)
	Interest Income	$	6,701	$	6,514	$	6,392	$	6,464
	Interest Expense		1,931		1,753		1,667		1,626
	Net Interest Income		4,770		4,761		4,725		4,838
	Provision for Loan Losses		300		300		300		300
	Net Interest Income after provision for loan losses		4,470		4,461		4,425		4,538
	Other Income		544		1,071		349		486
	Other Expenses		4,315		4,663		4,192		4,454
	Income before income tax expense		699		869		582		570
	Income tax expense		237		295		214		174
	Net income available to common shareholders	$	462	$	574	$	368	$	396
	Per share date:
	Basic earnings per share	$	0.15	$	0.19	$	0.11	$	0.13
	Diluted earnings per share	$	0.15	$	0.18	$	0.11	$	0.12

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
	Jun. 30, 2013	Sep. 30, 2013	Sep. 30, 2012
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Capital stock of Federal Reserve Bank, percentage	'	6.00%	'
Capital stock of Federal Reserve Bank paid, percentage	'	3.00%	'
Capital stock of Federal Reserve Bank on call, percentage	'	3.00%	'
Loan payments, delinquency period	'	'90 days	'
Gain on sale of building	$114,000	'	'
Anti-dilutive shares not included in computation of earnings per share	'	10,528	60,454
Standby letters of credit	'	$480,000	'
Share Exchange Ratio	'	$2.08	'
Merger Agreement Date	'	13-Jun-13	'
Merger Completion Expected year	'	'2014	'
Baltimore County Savings Bank, F.S.B. and its subsidiaries	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Percentage of ownership interest	'	100.00%	'
Ebenezer Road Inc.	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Percentage of ownership interest	'	100.00%	'
Lyons Properties, LLC.	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Percentage of ownership interest	'	100.00%	'

Basic_and_Diluted_Weighted_Ave

Basic and Diluted Weighted Average Shares Outstanding (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012
Basic EPS, Income	'	'	'	'	'	'	'	'	'	'
Net Income available to shareholders	$442	$436	$303	$639	$396	$368	$574	$462	$1,820	$1,800
Diluted EPS, Income	'	'	'	'	'	'	'	'	'	'
Effect of dilutive shares	'	'	'	'	'	'	'	'	'	'
Net Income available to shareholders	'	'	'	'	'	'	'	'	$1,820	$1,800
Basic, Shares	'	'	'	'	'	'	'	'	'	'
Shares, net income available to shareholders	'	'	'	'	'	'	'	'	3,110	3,102
Diluted, shares	'	'	'	'	'	'	'	'	'	'
Effect of dilutive shares	'	'	'	'	'	'	'	'	124	96
Diluted shares, net income available to shareholders	'	'	'	'	'	'	'	'	3,234	3,198
Basic EPS	'	'	'	'	'	'	'	'	'	'
Basic Per share amount, net income available to shareholders	$0.14	$0.14	$0.09	$0.21	$0.13	$0.11	$0.19	$0.15	$0.58	$0.58
Diluted EPS	'	'	'	'	'	'	'	'	'	'
Per share amount, effect of dilutive shares	'	'	'	'	'	'	'	'	($0.02)	($0.02)
Diluted per share amount, net income available to shareholders	$0.13	$0.14	$0.09	$0.20	$0.12	$0.11	$0.18	$0.15	$0.56	$0.56

Core_Deposit_Intangible_and_Am

Core Deposit Intangible and Amortization Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Finite-Lived Intangible Assets [Line Items]	'	'
Core Deposit Intangible	$630	$630
Accumulated Amortization	-605	-593
Net Balance	25	37
Estimated amortization expense, year one	12	'
Estimated amortization expense, year two	13	'
Aggregate Amortization Expense	$12	$14

Amortized_Cost_and_Estimated_F

Amortized Cost and Estimated Fair Values of Investment Securities Available for Sale (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$4,980	$4,980
Gross Unrealized Gains	'	'
Gross Unrealized Losses	-226	-352
Estimated Fair Value	4,754	4,628
Corporate Bonds	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	4,880	4,880
Gross Unrealized Gains	'	'
Gross Unrealized Losses	-226	-352
Estimated Fair Value	4,654	4,528
Equity Investments	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	100	100
Gross Unrealized Gains	'	'
Estimated Fair Value	$100	$100

Investment_Securities_with_Unr

Investment Securities with Unrealized Losses and Length of Time Individual Security Has Been in Continuous Unrealized Loss Position (Detail) (Investment securities, USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, fair value	'	'
Less than 12 months, unrealized losses	'	'
12 months or more, fair value	4,654	4,528
12 months or more, unrealized losses	-226	-352
Total Fair Value	4,654	4,528
Total unrealized losses	-226	-352
Corporate Bonds	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, fair value	'	'
Less than 12 months, unrealized losses	'	'
12 months or more, fair value	4,654	4,528
12 months or more, unrealized losses	-226	-352
Total Fair Value	4,654	4,528
Total unrealized losses	($226)	($352)

Investment_Securities_Availabl2

Investment Securities Available for Sale - Additional Information (Detail) (Investment securities)	Sep. 30, 2013	Sep. 30, 2012
	Investment	Investment
Investment securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Investment security in unrealized loss position	2	2

Investment_Securities_by_Matur

Investment Securities by Maturity (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Available for sale, amortized cost	'	'
Available for sale, amortized cost	$4,980	$4,980
Available for sale, fair value	'	'
Available for sale, fair value	4,754	4,628
Corporate Bonds	'	'
Available for sale, amortized cost	'	'
Available for sale, amortized cost	4,880	4,880
Available for sale, fair value	'	'
Available for sale, fair value	4,654	4,528
Equity Investments	'	'
Available for sale, amortized cost	'	'
Available for sale, amortized cost	100	100
Available for sale, fair value	'	'
Available for sale, fair value	100	100
Investment securities	'	'
Available for sale, amortized cost	'	'
Available for sale, amortized cost	4,980	'
Available for sale, fair value	'	'
Available for sale, fair value	4,754	'
Investment securities | Corporate Bonds	'	'
Available for sale, amortized cost	'	'
Due within 12 months	'	'
Due beyond 12 months but within five years	1,380	'
Due beyond five years but within ten years	3,500	'
Due beyond ten years	'	'
Available for sale, amortized cost	4,880	'
Available for sale, fair value	'	'
Due within 12 months	'	'
Due beyond 12 months but within five years	1,364	'
Due beyond five years but within ten years	3,290	'
Due beyond ten years	'	'
Total Corporate Bonds, fair value	4,654	'
Investment securities | Equity Investments	'	'
Available for sale, amortized cost	'	'
Available for sale, amortized cost	100	'
Available for sale, fair value	'	'
Available for sale, fair value	$100	'

Loans_Receivable_Detail

Loans Receivable (Detail) (USD $)	Sep. 30, 2013		Sep. 30, 2012
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	$337,435	[1],[2]	$346,788	[1],[2]
Less-undisbursed portion of loans in process	-7,966		-6,467
Unearned interest	-1		-3
deferred loan origination costs and (fees)	272		-38
Allowance for losses on loans	-5,604		-5,470
Loans receivable, net	324,136		334,810
Single-family residential mortgages	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	63,769		76,823
Single Family Rental Property Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	59,272		62,111
Commercial real estate loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	145,672		141,364
Construction Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	25,917	[1]	21,396	[1]
Commercial loans secured	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	161		71
Commercial loans unsecured	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	52		60
Commercial lease loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	'		20
Commercial lines of credit	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	7,521		9,952
Automobile Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	132	[1]	437	[1]
Home equity lines of credit	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	33,443		32,840
Other Consumer Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	$1,496		$1,714
[1]	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loans origination fees and costs and allowance for loan losses.
[2]	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowances for loan losses.

Loans_Receivable_Additional_In

Loans Receivable - Additional Information (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013		Sep. 30, 2012
	MortgageLoan		MortgageLoan
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loan to appraised value of property, percentage	80.00%		'
Loan-to-value ratios required for residential real estate loans, percentage	80.00%		'
Non-accrual loans	8,440,000	[1],[2]	13,145,000	[1],[2]
Loans with specific allowance recorded, Related Allowance	2,193,000		2,022,000
Troubled debt restructurings, total	7,200,000		9,300,000
Troubled debt restructurings classified as not delinquent	7,100,000		'
Loans serviced for others	24,700,000		19,800,000
Custodial escrow balances in connection with foregoing loan servicing	123,000		216,000
Home Equity Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Non-accrual loans	142,000		'
Loan Commitments fixed interest rate	2.85%		'
Home Equity Loans | Fixed Rate Mortgage	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Mortgage loan, fixed rate, minimum	3.25%		'
Mortgage loan, fixed rate, maximum	6.00%		'
Home Equity Loans | Fixed Rate Mortgage | Single-family residential mortgages	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Number of residential mortgage loan commitments	1		'
Home Equity Loans | Variable Rate Mortgage	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Interest rate below prime rate	0.50%		'
Interest rate, floor	4.00%		'
Commercial Loans and Loan Commitments | Fixed Rate	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Mortgage loan, fixed rate, minimum	4.75%		6.16%
Mortgage loan, fixed rate, maximum	6.00%		6.75%
Number of residential mortgage loan commitments	0		0
[1]	Includes Troubled Debt Restructurings (TDR's) of $1.2 million and $700,000 at September 30, 2013 and 2012, respectively, which were not delinquent. Reporting guidance requires disclosure of these loans as nonaccrual even though they may be current in terms of principal and interest payments. As of September 30, 2013 and 2012, the Company had total TDR's of $7.2 million and $9.3 million, respectively.
[2]	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowances for loan losses.

Interest_income_that_would_hav

Interest income that would have been recorded under the original terms of non-accrual loans and interest (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Sales Financing Receivable Recorded Investment Past Due [Line Items]	'	'
Interest income that would have been recognized	$837	$1,065
Interest income recognized	251	439
Interest income not recognized	$586	$626

Summary_of_activity_of_loans_r

Summary of activity of loans receivable from related parties (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Beginning balance	$256	$254
New loans	33	31
Loan repayments	-30	-29
Ending balance	$259	$256

Financial_Instruments_Whose_Co

Financial Instruments Whose Contract Amounts Represents Credit Risk (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Standby Letters of Credit	'	'
Financial Instruments [Line Items]	'	'
Financial Instruments Whose Contract Amounts Represents Credit Risk	$480	$390
Commercial lines of credit	'	'
Financial Instruments [Line Items]	'	'
Financial Instruments Whose Contract Amounts Represents Credit Risk	6,356	6,670
Home equity lines of credit	'	'
Financial Instruments [Line Items]	'	'
Financial Instruments Whose Contract Amounts Represents Credit Risk	24,295	24,850
Loan commitments, fixed rates	'	'
Financial Instruments [Line Items]	'	'
Financial Instruments Whose Contract Amounts Represents Credit Risk	549	10,758
Overdraft protection lines of credit	'	'
Financial Instruments [Line Items]	'	'
Financial Instruments Whose Contract Amounts Represents Credit Risk	$672	$705

Allowance_for_Losses_and_Recor

Allowance for Losses and Recorded Investment in Loans (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Sep. 30, 2013

Sep. 30, 2012

Allowance for losses on Loans:

'

'

'

'

'

'

'

'

'

Beginning Balance

'

'

$5,470

'

'

'

$4,768

$5,470

$4,768

Charge-Offs

'

'

'

'

'

'

'

-1,048

-571

Recoveries

'

'

'

'

'

'

'

82

73

Provisions

150

450

500

300

300

300

300

1,100

1,200

Ending Balance

'

'

'

5,470

'

'

'

5,604

5,470

Ending balance individually evaluated for impairment

'

'

'

22,335

[1]

'

'

'

21,015

[1]

22,335

[1]

Ending balance collectively evaluated for impairment

'

'

'

324,453

[1]

'

'

'

316,420

[1]

324,453

[1]

Ending Allowance balance for loans individually evaluated for impairment

'

'

'

2,022

'

'

'

2,193

2,022

Ending Allowance balance for loans collectively evaluated for impairment

'

'

'

3,448

'

'

'

3,411

3,448

Residential Loans

'

'

'

'

'

'

'

'

'

Allowance for losses on Loans:

'

'

'

'

'

'

'

'

'

Beginning Balance

'

'

140

'

'

'

205

140

205

Charge-Offs

'

'

'

'

'

'

'

'

-9

Recoveries

'

'

'

'

'

'

'

'

1

Provisions

'

'

'

'

'

'

'

-74

-57

Ending Balance

'

'

'

140

'

'

'

66

140

Ending balance individually evaluated for impairment

'

'

'

1,163

'

'

'

1,454

1,163

Ending balance collectively evaluated for impairment

'

'

'

75,660

'

'

'

62,315

75,660

Ending Allowance balance for loans collectively evaluated for impairment

'

'

'

140

'

'

'

66

140

Residential Rental Loans

'

'

'

'

'

'

'

'

'

Allowance for losses on Loans:

'

'

'

'

'

'

'

'

'

Beginning Balance

'

'

2,232

'

'

'

1,595

2,232

1,595

Charge-Offs

'

'

'

'

'

'

'

-408

-513

Recoveries

'

'

'

'

'

'

'

'

5

Provisions

'

'

'

'

'

'

'

719

1,145

Ending Balance

'

'

'

2,232

'

'

'

2,543

2,232

Ending balance individually evaluated for impairment

'

'

'

7,135

'

'

'

7,803

7,135

Ending balance collectively evaluated for impairment

'

'

'

54,976

'

'

'

51,469

54,976

Ending Allowance balance for loans individually evaluated for impairment

'

'

'

840

'

'

'

1,441

840

Ending Allowance balance for loans collectively evaluated for impairment

'

'

'

1,392

'

'

'

1,102

1,392

Commercial Loans

'

'

'

'

'

'

'

'

'

Allowance for losses on Loans:

'

'

'

'

'

'

'

'

'

Beginning Balance

'

'

1,477

'

'

'

1,513

1,477

1,513

Charge-Offs

'

'

'

'

'

'

'

'

-35

Recoveries

'

'

'

'

'

'

'

8

16

Provisions

'

'

'

'

'

'

'

334

-17

Ending Balance

'

'

'

1,477

'

'

'

1,819

1,477

Ending balance individually evaluated for impairment

'

'

'

5,560

'

'

'

8,499

5,560

Ending balance collectively evaluated for impairment

'

'

'

145,907

'

'

'

144,907

145,907

Ending Allowance balance for loans individually evaluated for impairment

'

'

'

111

'

'

'

118

111

Ending Allowance balance for loans collectively evaluated for impairment

'

'

'

1,366

'

'

'

1,701

1,366

Construction Loans

'

'

'

'

'

'

'

'

'

Allowance for losses on Loans:

'

'

'

'

'

'

'

'

'

Beginning Balance

'

'

1,492

'

'

'

1,267

1,492

1,267

Charge-Offs

'

'

'

'

'

'

'

-636

'

Provisions

'

'

'

'

'

'

'

245

225

Ending Balance

'

'

'

1,492

'

'

'

1,101

1,492

Ending balance individually evaluated for impairment

'

'

'

8,267

'

'

'

2,994

8,267

Ending balance collectively evaluated for impairment

'

'

'

13,129

'

'

'

22,923

13,129

Ending Allowance balance for loans individually evaluated for impairment

'

'

'

1,071

'

'

'

634

1,071

Ending Allowance balance for loans collectively evaluated for impairment

'

'

'

421

'

'

'

467

421

Home Equity Loans

'

'

'

'

'

'

'

'

'

Allowance for losses on Loans:

'

'

'

'

'

'

'

'

'

Beginning Balance

'

'

119

'

'

'

168

119

168

Provisions

'

'

'

'

'

'

'

-44

-49

Ending Balance

'

'

'

119

'

'

'

75

119

Ending balance individually evaluated for impairment

'

'

'

210

'

'

'

265

210

Ending balance collectively evaluated for impairment

'

'

'

32,630

'

'

'

33,178

32,630

Ending Allowance balance for loans collectively evaluated for impairment

'

'

'

119

'

'

'

75

119

Automobile Loans

'

'

'

'

'

'

'

'

'

Allowance for losses on Loans:

'

'

'

'

'

'

'

'

'

Ending balance collectively evaluated for impairment

'

'

'

437

'

'

'

132

437

Other Consumer Loans

'

'

'

'

'

'

'

'

'

Allowance for losses on Loans:

'

'

'

'

'

'

'

'

'

Beginning Balance

'

'

10

'

'

'

20

10

20

Charge-Offs

'

'

'

'

'

'

'

-4

-14

Recoveries

'

'

'

'

'

'

'

74

51

Provisions

'

'

'

'

'

'

'

-80

-47

Ending Balance

'

'

'

10

'

'

'

'

10

Ending balance collectively evaluated for impairment

'

'

'

1,714

'

'

'

1,496

1,714

Ending Allowance balance for loans collectively evaluated for impairment

'

'

'

$10

'

'

'

'

$10

[1]

Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowance for loan losses.

Classification_of_Loans_Detail

Classification of Loans (Detail) (USD $)	Sep. 30, 2013		Sep. 30, 2012
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	$337,435	[1],[2]	$346,788	[1],[2]
Pass	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	306,885	[3]	315,516	[3]
Special Mention	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	9,588		6,408
Substandard	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	20,962		24,864
Residential Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	63,769	[1]	76,823	[1]
Residential Loans | Pass	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	61,533	[3]	76,166	[3]
Residential Loans | Special Mention	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	782		119
Residential Loans | Substandard	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	1,454		538
Residential Rental Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	59,272	[1]	62,111	[1]
Residential Rental Loans | Pass	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	50,531	[3]	49,817	[3]
Residential Rental Loans | Special Mention	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	991		3,824
Residential Rental Loans | Substandard	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	7,750		8,470
Commercial Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	153,406	[1]	151,467	[1]
Commercial Loans | Pass	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	139,171	[3]	141,413	[3]
Commercial Loans | Special Mention	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	5,736		2,465
Commercial Loans | Substandard	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	8,499		7,589
Construction Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	25,917	[1]	21,396	[1]
Construction Loans | Pass	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	21,523	[3]	13,129	[3]
Construction Loans | Special Mention	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	1,400		'
Construction Loans | Substandard	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	2,994		8,267
Home Equity Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	33,443	[1]	32,840	[1]
Home Equity Loans | Pass	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	32,534	[3]	32,840	[3]
Home Equity Loans | Special Mention	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	644		'
Home Equity Loans | Substandard	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	265		'
Automobile Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	132	[1]	437	[1]
Automobile Loans | Pass	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	132	[3]	437	[3]
Other loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	1,496	[1]	1,714	[1]
Other loans | Pass	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	1,461	[3]	1,714	[3]
Other loans | Special Mention	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans Receivable	$35		'
[1]	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loans origination fees and costs and allowance for loan losses.
[2]	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowances for loan losses.
[3]	Transitional loans are included in the Pass category for classification purposes.

Disclosures_About_Credit_Quali2

Disclosures About Credit Quality and Allowance for Losses on Loans - Additional Information (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Treasury securities adjusted maturity period	'1 year	'
Percentage of savings account loans from depositor's savings account balance	90.00%	'
Loan interest rate above rate paid to related savings account	3.00%	'
Late fee rate for loans past due for 15 days	5.00%	'
Nonperforming loans, notice	'As a matter of policy, the Bank will send a late notice to the borrower after the loan has been past due 15 days and again after 30 days. If payment is not promptly received, the borrower is contacted again, and efforts are made to formulate an affirmative plan to cure the delinquency. Generally, after any loan is delinquent 90 days or more, formal legal proceedings are commenced to collect amounts owed. In the case of automobile loans, late notices are sent after loans are ten days delinquent, and the collateral is seized after a loan is delinquent 60 days. Repossessed cars subsequently are sold at auction.	'
Default description	'Default after 90 days of non-payment.	'
Troubled debt restructurings, total	$7,200,000	$9,300,000
Troubled debt restructurings, current	7,100,000	'
Specific loan loss reserves on TDR	1,100,000	'
Maximum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Adjustment rate loan, adjustment rate per period	2.00%	'
Adjustment rate loan, aggregate adjustment rate	6.00%	'
Single-family residential mortgages | Maximum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, term	'5 years	'
Loans amortization period	'25 years	'
Residential Real Estate Mortgage Loans | Minimum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, applicable margin to prime late	0.00%	'
Residential Real Estate Mortgage Loans | Maximum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, applicable margin to prime late	1.50%	'
Commercial Construction | Minimum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, applicable margin to prime late	0.00%	'
Commercial Construction | Maximum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, applicable margin to prime late	1.50%	'
Construction Loans	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Interest rate option period	'3 years	'
Commercial lines of credit | Minimum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, applicable margin to prime late	0.00%	'
Commercial lines of credit | Maximum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, applicable margin to prime late	3.50%	'
Automobile Loans | Maximum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, term	'6 years	'
Percentage collateral to loans	110.00%	'
Bank originates second mortgage loans | Maximum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, term	'15 years	'
Home equity lines of credit	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Interest rate below prime rate	0.25%	'
Home equity lines of credit | Fixed Rate	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Interest rate	1.99%	'
Home equity lines of credit | Minimum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Interest rate	4.00%	'
Home equity lines of credit | Maximum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, term	'30 years	'
Interest rate	24.00%	'
Commercial real estate loans	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Commercial real estate loans, minimum	100,000	'
Commercial real estate loans, maximum	$5,000,000	'
Commercial real estate loans | Minimum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, term	'5 years	'
Commercial real estate loans | Maximum	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Loan, term	'10 years	'
Loans amortization period	'25 years	'

Impaired_Loans_Detail

Impaired Loans (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific allowance recorded, Recorded Investments	$9,912	$10,196
Loans without specific valuation allowance, Unpaid Principal Balance	9,912	10,196
Loans without specific valuation allowance, Related Allowance	'	'
Loans with specific allowance recorded, Recorded Investments	11,103	12,139
Loans with specific allowance recorded, Unpaid Principal Balance	11,103	12,139
Loans with specific allowance recorded, Related Allowance	2,193	2,022
Residential Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific allowance recorded, Recorded Investments	1,454	1,163
Loans without specific valuation allowance, Unpaid Principal Balance	1,454	1,163
Loans without specific valuation allowance, Related Allowance	'	'
Residential Rental Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific allowance recorded, Recorded Investments	1,296	2,123
Loans without specific valuation allowance, Unpaid Principal Balance	1,296	2,123
Loans without specific valuation allowance, Related Allowance	'	'
Loans with specific allowance recorded, Recorded Investments	6,507	5,012
Loans with specific allowance recorded, Unpaid Principal Balance	6,507	5,012
Loans with specific allowance recorded, Related Allowance	1,441	840
Commercial Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific allowance recorded, Recorded Investments	6,897	3,925
Loans without specific valuation allowance, Unpaid Principal Balance	6,897	3,925
Loans without specific valuation allowance, Related Allowance	'	'
Loans with specific allowance recorded, Recorded Investments	1,602	1,635
Loans with specific allowance recorded, Unpaid Principal Balance	1,602	1,635
Loans with specific allowance recorded, Related Allowance	118	111
Construction Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific allowance recorded, Recorded Investments	'	2,775
Loans without specific valuation allowance, Unpaid Principal Balance	'	2,775
Loans without specific valuation allowance, Related Allowance	'	'
Loans with specific allowance recorded, Recorded Investments	2,994	5,492
Loans with specific allowance recorded, Unpaid Principal Balance	2,994	5,492
Loans with specific allowance recorded, Related Allowance	634	1,071
Home Equity Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific allowance recorded, Recorded Investments	265	210
Loans without specific valuation allowance, Unpaid Principal Balance	265	210
Loans without specific valuation allowance, Related Allowance	'	'
Consumer loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific valuation allowance, Related Allowance	'	'
Other loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific valuation allowance, Related Allowance	'	'

Average_Recorded_Investment_an

Average Recorded Investment and Interest Income Recognized On Impaired Loans (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific valuation allowance, Average Recorded Investment	$10,084	$10,492
Loans without specific valuation allowance, Interest Income Recognized	423	368
Loans with specific allowance recorded, Average Recorded Investment	11,132	12,318
Loans with specific allowance recorded, Interest Income Recognized	548	537
Residential Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific valuation allowance, Average Recorded Investment	1,484	1,174
Loans without specific valuation allowance, Interest Income Recognized	73	64
Residential Rental Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific valuation allowance, Average Recorded Investment	1,298	2,125
Loans without specific valuation allowance, Interest Income Recognized	'	51
Loans with specific allowance recorded, Average Recorded Investment	6,498	5,155
Loans with specific allowance recorded, Interest Income Recognized	327	288
Commercial Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific valuation allowance, Average Recorded Investment	7,037	3,993
Loans without specific valuation allowance, Interest Income Recognized	342	105
Loans with specific allowance recorded, Average Recorded Investment	1,640	1,669
Loans with specific allowance recorded, Interest Income Recognized	94	96
Construction Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific valuation allowance, Average Recorded Investment	'	2,988
Loans without specific valuation allowance, Interest Income Recognized	'	142
Loans with specific allowance recorded, Average Recorded Investment	2,994	5,494
Loans with specific allowance recorded, Interest Income Recognized	127	153
Home Equity Loans	'	'
Financing Receivable, Impaired [Line Items]	'	'
Loans without specific valuation allowance, Average Recorded Investment	265	212
Loans without specific valuation allowance, Interest Income Recognized	$8	$6

Past_Due_Loans_Detail

Past Due Loans (Detail) (USD $)	Sep. 30, 2013		Sep. 30, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'		'
30-59 Days past due	$1,136	[1]	$662	[1]
60-89 Days past due	124	[1]	503	[1]
Non-Accrual	8,440	[1],[2]	13,145	[1],[2]
Total past due and Non-Accrual	9,700	[1]	14,310	[1]
Current	327,735	[1]	332,478	[1]
Total Loans	337,435	[1],[3]	346,788	[1],[3]
Non-Accrual Loans that are Current	4,593	[1]	2,346	[1]
Loans Greater than 90 days and Accruing	'	[1]	'	[1]
Residential Loans	'		'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'		'
30-59 Days past due	753		360
60-89 Days past due	89		82
Non-Accrual	718		472
Total past due and Non-Accrual	1,560		914
Current	62,209		75,909
Total Loans	63,769	[3]	76,823	[3]
Non-Accrual Loans that are Current	347		'
Loans Greater than 90 days and Accruing	'		'
Residential Rental Loans	'		'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'		'
30-59 Days past due	'		180
60-89 Days past due	'		340
Non-Accrual	3,013		2,128
Total past due and Non-Accrual	3,013		2,648
Current	56,259		59,463
Total Loans	59,272	[3]	62,111	[3]
Non-Accrual Loans that are Current	792		741
Loans Greater than 90 days and Accruing	'		'
Commercial Loans	'		'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'		'
Non-Accrual	1,573		2,994
Total past due and Non-Accrual	1,573		2,994
Current	151,833		148,473
Total Loans	153,406	[3]	151,467	[3]
Non-Accrual Loans that are Current	378		1,311
Loans Greater than 90 days and Accruing	'		'
Construction Loans	'		'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'		'
Non-Accrual	2,994		7,551
Total past due and Non-Accrual	2,994		7,551
Current	22,923		13,845
Total Loans	25,917	[3]	21,396	[3]
Non-Accrual Loans that are Current	2,994		294
Loans Greater than 90 days and Accruing	'		'
Home Equity Loans	'		'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'		'
30-59 Days past due	381		119
60-89 Days past due	'		81
Non-Accrual	142		'
Total past due and Non-Accrual	523		200
Current	32,920		32,640
Total Loans	33,443	[3]	32,840	[3]
Non-Accrual Loans that are Current	82		'
Loans Greater than 90 days and Accruing	'		'
Automobile Loans	'		'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'		'
Current	132		437
Total Loans	132	[3]	437	[3]
Loans Greater than 90 days and Accruing	'		'
Other loans	'		'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'		'
30-59 Days past due	2		3
60-89 Days past due	35		'
Total past due and Non-Accrual	37		3
Current	1,459		1,711
Total Loans	1,496	[3]	1,714	[3]
Loans Greater than 90 days and Accruing	'		'
[1]	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowances for loan losses.
[2]	Includes Troubled Debt Restructurings (TDR's) of $1.2 million and $700,000 at September 30, 2013 and 2012, respectively, which were not delinquent. Reporting guidance requires disclosure of these loans as nonaccrual even though they may be current in terms of principal and interest payments. As of September 30, 2013 and 2012, the Company had total TDR's of $7.2 million and $9.3 million, respectively.
[3]	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loans origination fees and costs and allowance for loan losses.

Loans_on_Nonaccrual_Status_Det

Loans on Nonaccrual Status (Detail) (USD $)	Sep. 30, 2013		Sep. 30, 2012
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Nonaccrual loans, With no related allowance recorded	$3,587		$10,062
Nonaccrual loans, With an allowance recorded	4,853		3,083
Nonaccrual loans	8,440	[1],[2]	13,145	[1],[2]
Residential Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Nonaccrual loans, With no related allowance recorded	718		472
Nonaccrual loans	718		472
Residential Rental Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Nonaccrual loans, With no related allowance recorded	1,296		2,039
Nonaccrual loans, With an allowance recorded	1,717		89
Nonaccrual loans	3,013		2,128
Commercial Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Nonaccrual loans, With no related allowance recorded	1,573		2,994
Nonaccrual loans	1,573		2,994
Construction Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Nonaccrual loans, With no related allowance recorded	'		4,557
Nonaccrual loans, With an allowance recorded	2,994		2,994
Nonaccrual loans	2,994		7,551
Home Equity Loans	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Nonaccrual loans, With an allowance recorded	142		'
Nonaccrual loans	$142		'
[1]	Includes Troubled Debt Restructurings (TDR's) of $1.2 million and $700,000 at September 30, 2013 and 2012, respectively, which were not delinquent. Reporting guidance requires disclosure of these loans as nonaccrual even though they may be current in terms of principal and interest payments. As of September 30, 2013 and 2012, the Company had total TDR's of $7.2 million and $9.3 million, respectively.
[2]	Balances are not adjusted for individual portions of loans in process, unearned interest, deferred loan origination fees and costs and allowances for loan losses.

Loans_on_Nonaccrual_Status_Par

Loans on Nonaccrual Status (Parenthetical) (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Troubled debt restructurings, total	$7,200,000	$9,300,000
Troubled debt restructurings classified as not delinquent	7,100,000	'
Non Accrual Loans	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Troubled debt restructurings classified as not delinquent	$1,200,000	$700,000

Troubled_Debt_Restructurings_M

Troubled Debt Restructurings Modifications (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
	Contract	Contract
Residential-Prime	'	'
Troubled Debt Restructuring, Debtor, Current Period [Line Items]	'	'
Number of Contracts	5	1
Pre-Modification Outstanding Recorded Investments	$1,232	$90
Post- Modification Outstanding Recorded Investments	1,232	90
Commercial	'	'
Troubled Debt Restructuring, Debtor, Current Period [Line Items]	'	'
Number of Contracts	'	5
Pre-Modification Outstanding Recorded Investments	'	2,449
Post- Modification Outstanding Recorded Investments	'	$2,449

Amortized_Cost_and_Estimated_F1

Amortized Cost and Estimated Fair Values of Mortgage-Backed Securities (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$4,980	$4,980
Gross Unrealized Gains	'	'
Gross Unrealized Losses	-226	-352
Estimated Fair Value	220,050	213,563
GNMA certificates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Estimated Fair Value	3,384	3,417
Private Label Collateralized Mortgage Obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Estimated Fair Value	4,614	9,034
Collateralized Mortgage Obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Estimated Fair Value	181,825	182,729
FNMA certificates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Estimated Fair Value	22,040	12,530
FHLMC participating certificates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Estimated Fair Value	8,187	5,853
Mortgage-Backed Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	227,643	210,716
Gross Unrealized Gains	1,196	5,082
Gross Unrealized Losses	-8,789	-2,235
Mortgage-Backed Securities | GNMA certificates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	3,313	3,416
Gross Unrealized Gains	71	1
Mortgage-Backed Securities | Private Label Collateralized Mortgage Obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	5,542	11,259
Gross Unrealized Gains	'	10
Gross Unrealized Losses	-928	-2,235
Mortgage-Backed Securities | Collateralized Mortgage Obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	188,426	178,948
Gross Unrealized Gains	399	3,781
Gross Unrealized Losses	-7,000	'
Mortgage-Backed Securities | FNMA certificates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	22,168	11,690
Gross Unrealized Gains	492	840
Gross Unrealized Losses	-620	'
Mortgage-Backed Securities | FHLMC participating certificates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	8,194	5,403
Gross Unrealized Gains	234	450
Gross Unrealized Losses	($241)	'

MortgageBacked_Securities_Avai2

Mortgage-Backed Securities Available for Sale - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
			Private Label Collateralized Mortgage Obligations	Private Label Collateralized Mortgage Obligations	Mortgage-Backed Securities	Mortgage-Backed Securities	Mortgage-Backed Securities	Mortgage-Backed Securities
			Securities		Securities	Investment	Private Label Collateralized Mortgage Obligations	Private Label Collateralized Mortgage Obligations
					Investment
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'	'	'	'
Available for sale mortgage-backed security sold	'	'	$3,400,000	$3,400,000	$39,300,000	$1,200,000	'	'
Available for sale mortgage-backed security, gain	'	'	'	'	658,000	'	'	'
Number of private label securities	'	'	1	'	'	'	'	'
Available for sale mortgage-backed security, loss	'	'	589,000	589,000	'	6,000	'	'
Available for sale mortgage-backed security, net gain	'	'	69,000	'	'	'	'	'
Number of available for sale mortgaged-backed securities	'	'	'	'	17	'	'	'
Number of mortgage-backed securities in an unrealized loss position	'	'	'	'	68	2	'	'
Net other-than-temporary impairment charges on securities available for sale	'	370,000	'	'	'	'	'	'
Total unrealized losses	'	'	'	'	8,789,000	2,235,000	928,000	2,235,000
Amortized Cost	$4,980,000	$4,980,000	'	'	$227,643,000	$210,716,000	$5,542,000	$11,259,000
Annual market appreciation rate	3.50%	'	'	'	'	'	'	'
Loss severity, floor value	23.00%	'	'	'	'	'	'	'

MortgageBacked_Securities_with

Mortgage-Backed Securities with Unrealized Losses and Length of Time Individual Security has been in Continuous Unrealized Loss Position (Detail) (Mortgage-Backed Securities, USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, fair value	$180,833	'
Less than 12 months, unrealized losses	-7,863	'
12 months or more, fair value	3,739	7,673
12 months or more, unrealized losses	-926	-2,235
Total fair value	184,572	7,673
Total unrealized losses	-8,789	-2,235
Private Label Collateralized Mortgage Obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, fair value	875	'
Less than 12 months, unrealized losses	-2	'
12 months or more, fair value	3,739	7,673
12 months or more, unrealized losses	-926	-2,235
Total fair value	4,614	7,673
Total unrealized losses	-928	-2,235
Collateralized Mortgage Obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, fair value	161,504	'
Less than 12 months, unrealized losses	-7,000	'
Total fair value	161,504	'
Total unrealized losses	-7,000	'
FNMA certificates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, fair value	13,862	'
Less than 12 months, unrealized losses	-620	'
Total fair value	13,862	'
Total unrealized losses	-620	'
FHLMC participating certificates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, fair value	4,592	'
Less than 12 months, unrealized losses	-241	'
Total fair value	4,592	'
Total unrealized losses	($241)	'

Activity_in_Other_Than_Tempora

Activity in Other Than Temporary Impairment Related to Credit Losses (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]	'	'
Balance at Beginning of Period	$733	$400
Additional OTTI taken for credit losses	'	370
Charge-offs due to sale	-332	'
Charge-offs due to payment shortages	-158	-37
Balance at End of Period	$243	$733

Premises_and_Equipment_Detail

Premises and Equipment (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified			Office Building	Leasehold Improvements	Leasehold Improvements	Furniture, Fixtures and Equipment	Furniture, Fixtures and Equipment
				Minimum	Maximum	Minimum	Maximum
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'
Office Building	$11,608	$11,508	'	'	'	'	'
Leasehold improvements	1,341	1,234	'	'	'	'	'
Furniture, fixtures and equipment	9,174	9,641	'	'	'	'	'
Property, Plant and Equipment, Gross, Total	22,123	22,383	'	'	'	'	'
Accumulated depreciation	-12,215	-12,303	'	'	'	'	'
Premises and equipment, net	$9,908	$10,080	'	'	'	'	'
Property, plant and equipment, useful life	'	'	'40 years	'7 years	'31 years	'5 years	'10 years

Premises_and_Equipment_Net_Add

Premises and Equipment, Net - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Property, Plant and Equipment [Line Items]	'	'
Rental expense under long-term leases for property	$1.20	$1.40

Minimum_Rental_Commitments_und

Minimum Rental Commitments under Noncancellable Leases (Detail) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'
2014	$1,156
2015	1,229
2016	1,309
2017	1,325
2018	1,343
After 2018	11,253
Operating Leases, Future Minimum Payments Due, Total	$17,615

Summary_of_Deposits_Detail

Summary of Deposits (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Type of Account	'	'
Checking	$71,681	$71,024
Non-interest bearing Checking	38,462	35,264
Money market	79,363	94,229
Savings	100,758	95,227
Certificates	253,478	270,549
DepositLiability, Noncurrent, Total	543,742	566,293
Accrued interest payable	27	63
Total deposits	$543,769	$566,356
Percent	'	'
Checking	13.18%	12.51%
Non-interest bearing Checking	7.07%	6.26%
Money market	14.60%	16.64%
Savings	18.53%	16.81%
Certificates	46.61%	47.77%
Percentage of Core Deposits to Total Deposits, Total	99.99%	99.99%
Accrued interest payable	0.01%	0.01%
Percentage of Deposits to Deposits, Total	100.00%	100.00%

Deposits_Additional_Informatio

Deposits - Additional Information (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Millions, unless otherwise specified
Deposits [Line Items]	'	'
Certificate of deposit with a minimum denomination of $100,000	$87.50	$87.70

Scheduled_Maturities_of_Certif

Scheduled Maturities of Certificates of Deposit (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Periods Of Maturity [Line Items]	'	'
2014	$87,351	'
2015	98,336	'
2016	26,789	'
2017	30,264	'
2018	10,728	'
Certificates	$253,478	$270,549

Interest_Expense_on_Deposits_D

Interest Expense on Deposits (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Interest Bearing Deposits [Line Items]	'	'
Checking	$242	$417
Money market	236	564
Passbook savings	112	213
Certificates	4,119	5,139
Interest on deposits	$4,709	$6,333

Federal_Home_Loan_Bank_of_Atla1

Federal Home Loan Bank of Atlanta Advances and Other Borrowings - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]	'
Line of credit maximum loan facility	$2
Line of credit expiration date	1-Jun-12
Federal Home Loan Bank of Atlanta	'
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]	'
Unused line of credit	77.1
M & T	'
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]	'
Unused line of credit	$5

Junior_Subordinated_Debentures1

Junior Subordinated Debentures - Additional Information (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2002	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2003	Sep. 30, 2013	Sep. 30, 2012
			BCSB Bankcorp Capital Trust I	BCSB Bankcorp Capital Trust I	BCSB Bankcorp Capital Trust I	BCSB Bankcorp Capital Trust II	BCSB Bankcorp Capital Trust II	BCSB Bankcorp Capital Trust II
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'
Junior subordinated debentures	$17,011,000	$17,011,000	$12,887,000	'	'	$10,310,000	'	'
Interest rate over three month LIBOR rate	'	'	3.65%	3.92%	4.10%	3.00%	3.27%	3.45%
Issuance of mandatory redeemable preferred securities	'	'	'	12,500,000	'	'	10,000,000	'
Purchase of outstanding trust preferred securities issued by a trust	'	'	'	$6,200,000	'	'	'	'

Pension_Plan_Additional_Inform

Pension Plan - Additional Information (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
	Y
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'
401(K)retirement savings plan, maximum employee contribution	$17,500	'
401(K)retirement savings plan, additional employee contribution retirement savings plan	5,500	'
401(K)retirement savings plan, minimum age to be eligible for catch up contribution	50	'
401(K)retirement savings plan, employer matching contribution for first 3% of employee's contribution	50.00%	'
401(K)retirement savings plan, employer contribution to retirement savings plan	$87,000	$74,000

Employee_Stock_Ownership_Plan_1

Employee Stock Ownership Plan - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
	Apr. 10, 2008	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 1998
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]	'	'	'	'
Number of shares acquired by ESOP	122,197	'	'	182,930
Employee Stock Ownership Plan, eligibility description	'	'All employees of the Bank who attain the age of 18 and complete one year of service with the Bank will be eligible to participate in the ESOP. Participants must be employed at least 500 hours in a plan year in order to receive an allocation. Each participantbs vested interest under the ESOP is determined according to the following schedule: 0% for less than 1 year of service with the Company or the Bank, 20% for 1 year of service, 40% for 2 years of service, 60% for 3 years of service, 80% for 4 years of service, and 100% for 5 years of service. For vesting purposes, a year of service means any plan year in which an employee completes at least 1,000 hours of service. Vesting accelerates to 100% upon a participantbs attainment of age 65, death, disability or change in control.	'	'
Accelerated vesting upon participant's attainment under Employee Stock Ownership Plan, percentage	'	100.00%	'	'
ESOP compensation Expense	'	$148,000	$104,000	'
Less than One year service	'	'	'	'
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]	'	'	'	'
Percentage of interest vested under Employee Stock Ownership Plan	'	0.00%	'	'
One year service	'	'	'	'
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]	'	'	'	'
Percentage of interest vested under Employee Stock Ownership Plan	'	20.00%	'	'
Two years of service	'	'	'	'
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]	'	'	'	'
Percentage of interest vested under Employee Stock Ownership Plan	'	40.00%	'	'
Three years of service	'	'	'	'
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]	'	'	'	'
Percentage of interest vested under Employee Stock Ownership Plan	'	60.00%	'	'
Four years of service	'	'	'	'
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]	'	'	'	'
Percentage of interest vested under Employee Stock Ownership Plan	'	80.00%	'	'
Five years of service	'	'	'	'
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]	'	'	'	'
Percentage of interest vested under Employee Stock Ownership Plan	'	100.00%	'	'

Employee_Stock_Ownership_Plan_2

Employee Stock Ownership Plan Shares (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]	'	'
Shares released and allocated	136,285	128,138
Unearned shares	82,206	90,353
Employee Stock Ownership Plan (ESOP), Shares in ESOP, Total	218,491	218,491
Fair value of unearned shares	$2,005,826	$1,237,836

Management_Recognition_Plan_Ad

Management Recognition Plan - Additional Information (Detail) (USD $)

1 Months Ended

12 Months Ended

Jul. 15, 1999

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2011

Sep. 30, 2009

Sep. 30, 2008

Sep. 30, 2007

Sep. 30, 2002

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2011

20-May-09

Management Recognition Plan

Management Recognition Plan

Management Recognition Plan

Management Recognition Plan

Management Recognition Plan

Management Recognition Plan

Management Recognition Plan

Management Recognition Plan

Management Recognition Plan

Management Recognition Plan

Management Recognition Plan 2009

Management Recognition Plan 2009

Management Recognition Plan 2009

Management Recognition Plan 2009

Minimum

Maximum

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total number of shares authorized under MRP

48,147

'

'

'

'

'

'

'

'

'

'

'

'

76,697

Number of shares awarded

24,004

'

'

'

525

4,666

5,527

13,950

'

'

'

5,523

71,174

'

Number of shares vested and distributed

'

'

1,652

2,025

'

'

'

'

'

'

19,174

'

'

'

Shares award, vested rate

'

'

'

'

'

'

'

'

20.00%

25.00%

'

'

'

'

Share compensation expense

'

$214,000

$192,000

'

'

'

'

'

'

'

'

'

'

'

Stock_Option_Plans_Additional_

Stock Option Plans - Additional Information (Detail) (USD $)

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2013

Jul. 15, 1999

Sep. 30, 2009

Sep. 30, 2008

Sep. 30, 2007

Sep. 30, 2002

Sep. 30, 1999

Jul. 15, 1999

Jul. 15, 1999

31-May-09

Sep. 30, 2012

Sep. 30, 2011

Minimum

Maximum

Stock Option Plan 1999

Stock Option Plan 1999

Stock Option Plan 1999

Stock Option Plan 1999

Stock Option Plan 1999

Stock Option Plan 1999

Stock Option Plan 1999

Stock Option Plan 1999

Stock Option Plan 2009

Stock Option Plan 2009

Stock Option Plan 2009

Minimum

Maximum

Installment

Installment

Installment

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares of common stock reserved for future issuance

'

'

'

'

120,366

'

'

'

'

'

'

'

191,740

'

'

Options exercisable, number of annual installments

'

'

'

'

'

'

'

'

'

'

4

5

4

'

'

Options granted during period

'

15,052

'

'

'

11,796

22,193

15,792

43,428

42,119

'

'

'

15,052

177,930

Options, exercise period

'

'

'

'

'10 years

'

'

'

'

'

'

'

'10 years

'

'

Exercisable shares, exercisable shares

140,427

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average contractual life

'5 years 10 months 24 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate intrinsic value, exercisable shares

$1,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized stock option expense

166,000

195,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized pretax stock option expense

$197,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized pretax stock option expense recognition period

'

'

1-Oct-13

31-Mar-16

'

'

'

'

'

'

'

'

'

'

'

Outstanding_Stock_Options_Deta

Outstanding Stock Options (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013
Exercise Price $28.41	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares	10,528
Exercise Price	$28.41
Weighted Average Contractual Life	'3 years 3 months
Exercise Price $17.95	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares	5,264
Exercise Price	$17.95
Weighted Average Contractual Life	'4 years 2 months 12 days
Exercise Price $11.61	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares	22,193
Exercise Price	$11.61
Weighted Average Contractual Life	'4 years 3 months
Exercise Price $8.25	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares	10,921
Exercise Price	$8.25
Weighted Average Contractual Life	'5 years 9 months
Exercise Price $10.29	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares	175,917
Exercise Price	$10.29
Weighted Average Contractual Life	'7 years
Exercise Price $13.74	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares	15,052
Exercise Price	$13.74
Weighted Average Contractual Life	'8 years 6 months

Activity_Related_to_Options_Un

Activity Related to Options Under All Plans (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Number of Shares	'	'
Options Outstanding, Beginning Balance	240,653	255,211
Options exercised	-778	'
Options expired	'	-29,610
Forfeited	'	'
Granted	'	15,052
Options Outstanding, Ending Balance	239,875	240,653
Options exercisable, Ending balance	140,427	'
Weighted Average Exercise Price	'	'
Options Outstanding, Beginning Balance	$11.49	$12.53
Options exercised	($9.55)	'
Options expired	'	($21.61)
Forfeited	'	'
Granted	'	$13.74
Options Outstanding, Ending Balance	$11.50	$11.49
Options exercisable, Ending balance	$12.08	'

Weighted_Average_Assumptions_u

Weighted Average Assumptions used in Black-Scholes-Merton Option Pricing Model for Option Granted (Detail)	12 Months Ended
	Sep. 30, 2012
Schedule Of Weighted Average Assumptions [Line Items]	'
Dividend Yield	0.00%
Expected volatility	21.97%
Risk-free interest rate	0.99%
Expected lives	'4 years

Capital_Position_and_Current_C

Capital Position and Current Capital Requirements, Banks (Detail) (Banks, USD $)	Sep. 30, 2013		Sep. 30, 2012
In Thousands, unless otherwise specified
Banks	'		'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'		'
Tier 1 leverage ratio, Actual Amount	$66,774	[1]	$64,419	[1]
Tier 1 leverage ratio, Actual Ratio	10.70%	[1]	10.07%	[1]
Tier 1 leverage ratio, For Capital Adequacy Purpose Amount	24,971	[1]	25,600	[1]
Tier 1 leverage ratio, For Capital Adequacy Purpose Ratio	4.00%	[1]	4.00%	[1]
Tier 1 leverage ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	31,214	[1]	32,001	[1]
Tier 1 leverage ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	5.00%	[1]	5.00%	[1]
Tier 1 risk based capital ratio, Actual Amount	66,774	[2]	64,419	[2]
Tier 1 risk based capital ratio, Actual Ratio	17.71%	[2]	16.69%	[2]
Tier 1 risk based capital ratio, For Capital Adequacy Purpose Amount	15,082	[2]	'
Tier 1 risk based capital ratio, For Capital Adequacy Purpose Ratio	'	[2]	'	[2]
Tier 1 risk based capital ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	22,623	[2]	23,163	[2]
Tier 1 risk based capital ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	6.00%	[2]	6.00%	[2]
Total risk based capital ratio, Actual Amount	70,185	[2]	68,039	[2]
Total risk based capital ratio, Actual Ratio	18.61%	[2]	17.62%	[2]
Total risk based capital ratio, For Capital Adequacy Purpose Amount	30,164	[2]	30,884	[2]
Total risk based capital ratio, For Capital Adequacy Purpose Ratio	8.00%	[2]	8.00%	[2]
Total risk based capital ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$37,705	[2]	$38,605	[2]
Total risk based capital ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	10.00%	[2]	10.00%	[2]
[1]	To average total assets
[2]	To risk-weighted assets

Capital_Position_and_Current_C1

Capital Position and Current Capital Requirements, Parent (Detail) (BCSB Bancorp Inc, USD $)	Sep. 30, 2013		Sep. 30, 2012
In Thousands, unless otherwise specified
BCSB Bancorp Inc	'		'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'		'
Tier 1 leverage ratio, Actual Amount	$54,256	[1]	$53,446	[1]
Tier 1 leverage ratio, Actual Ratio	8.49%	[1]	8.39%	[1]
Tier 1 leverage ratio, For Capital Adequacy Purpose Amount	25,564	[1]	25,487	[1]
Tier 1 leverage ratio, For Capital Adequacy Purpose Ratio	4.00%	[1]	4.00%	[1]
Tier 1 leverage ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	31,955	[1]	31,858	[1]
Tier 1 leverage ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	5.00%	[1]	5.00%	[1]
Tier 1 risk based capital ratio, Actual Amount	54,256	[2]	53,446	[2]
Tier 1 risk based capital ratio, Actual Ratio	14.32%	[2]	13.74%	[2]
Tier 1 risk based capital ratio, For Capital Adequacy Purpose Amount	15,153	[2]	'
Tier 1 risk based capital ratio, For Capital Adequacy Purpose Ratio	'	[2]	'	[2]
Tier 1 risk based capital ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	22,730	[2]	23,330	[2]
Tier 1 risk based capital ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	6.00%	[2]	6.00%	[2]
Tier 1 leverage ratio, Actual Amount	57,667	[2]	57,066	[2]
Tier 1 leverage ratio, Actual Ratio	15.22%	[2]	14.68%	[2]
Tier 1 leverage ratio, For Capital Adequacy Purpose Amount	30,307	[2]	31,107	[2]
Tier 1 leverage ratio, For Capital Adequacy Purpose Amount	8.00%	[2]	8.00%	[2]
Tier 1 leverage ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$37,884	[2]	$38,884	[2]
Tier 1 leverage ratio, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	10.00%	[2]	10.00%	[2]
[1]	To average total assets
[2]	To risk-weighted assets

Reconciliation_of_Total_Equity

Reconciliation of Total Equity Per Consolidated Financial Statements to Capital Amounts (Detail) (USD $)	1 Months Ended	12 Months Ended
	Apr. 19, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'	'	'	'
Total equity	'	$49,800,000	$55,139,000	$51,959,000
Adjustment for accumulated other comprehensive loss (income)	'	4,686,000	-1,511,000	'
Adjustment for intangible assets	'	-25,000	-37,000	'
Adjustment for disallowed deferred tax asset	'	-206,000	-145,000	'
Adjustment for parent company equity	-1,442,000	10,326,000	10,973,000	'
Tangible, Tier 1 and Core Capital	'	64,581,000	64,419,000	'
Allowance for loan losses	'	5,604,000	3,620,000	'
Total risk-based capital	'	$70,185,000	$68,039,000	'

Regulatory_Capital_Additional_

Regulatory Capital - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2013
	BasisPoint
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'
Capital exceeds assets	2.00%
Interest rates basis point	200
Surplus of capital stock	100.00%
Minimum	'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'
Percentage of annual transfer to surplus from net earnings	10.00%
Maximum	'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'
Percentage of cash dividends of total net earning	90.00%

Preferred_Stock_Additional_Inf

Preferred Stock - Additional Information (Detail) (USD $)	1 Months Ended			12 Months Ended
	Apr. 19, 2013	Jan. 26, 2011	Dec. 31, 2008	Sep. 30, 2013	Sep. 30, 2012	Dec. 23, 2008
Class of Stock [Line Items]	'	'	'	'	'	'
Preferred stock, shares issued	'	'	'	'	'	10,800
Preferred stock, liquidation preference	'	'	'	'	'	$1,000
Warrant issued to purchase common stock	183,465	'	183,465	'	'	'
Common stock, par value	'	'	$0.01	'	'	'
Aggregate purchase price of common stock	$1,442,000	'	$10,800,000	'	'	'
Repurchases of preferred stock	'	'	'	70,000	40,000	'
Equity accretion to redemption value	'	310,000	'	'	'	'
Exercise price Of warrants	8.83	'	'	'	'	'
Warrant, expiration date	23-Mar-18	'	'	'	'	'
Reduction in total Stockholders' Equity	-1,442,000	'	'	10,326,000	10,973,000	'
Series A Preferred Stock	'	'	'	'	'	'
Class of Stock [Line Items]	'	'	'	'	'	'
Repurchases of preferred stock	'	$10,800,000	'	'	'	'

Income_Tax_Provision_Detail

Income Tax Provision (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012
Income Taxes [Line Items]	'	'	'	'	'	'	'	'	'	'
Current expense (benefit)	'	'	'	'	'	'	'	'	$676	$485
Deferred expense (benefit)	'	'	'	'	'	'	'	'	647	435
Total tax expense(benefit)	$579	$236	$135	$373	$174	$214	$295	$237	$1,323	$920

Tax_Effects_of_Temporary_Diffe

Tax Effects of Temporary Differences that Give Rise to Significant Positions of Deferred Tax Assets and Deferred Tax Liabilities (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Deferred Tax Assets:	'	'
ESOP and MRP	$171	$188
Deferred compensation	1,620	1,446
Other-than-temporary-impairment on securities available for sale	96	271
Allowance for loan losses	2,211	2,158
Allowance for uncollected interest	281	333
Unrealized holding losses on securities	3,053	'
Net operating loss carry forward	1,369	1,988
Other	'	79
Total gross deferred tax assets	8,801	6,463
Deferred Tax Liabilities:	'	'
Federal Home Loan Bank of Atlanta stock dividends	-213	-213
Depreciation	-220	-288
Unrealized holding gains on securities	'	-984
Total gross deferred tax liabilities	-433	-1,485
Net Deferred Tax Assets	$8,368	$4,978

Amount_Computed_by_Applying_St

Amount Computed by Applying Statutory Federal Income Tax Rate to Income Before Taxes (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012
Income Tax Rate Reconciliation [Line Items]	'	'	'	'	'	'	'	'	'	'
Statutory federal income tax rate, amount	'	'	'	'	'	'	'	'	$1,069	$925
State income tax net of Federal income tax benefit, amount	'	'	'	'	'	'	'	'	239	148
Income from life insurance, amount	'	'	'	'	'	'	'	'	-202	-218
Non-deductible merger related expense, amount	'	'	'	'	'	'	'	'	169	'
Other, amount	'	'	'	'	'	'	'	'	48	65
Total tax expense(benefit)	$579	$236	$135	$373	$174	$214	$295	$237	$1,323	$920
Statutory federal income tax rate, Percent of Pretax Income	'	'	'	'	'	'	'	'	34.00%	34.00%
State income tax net of Federal income tax benefit, Percent of Pretax Income	'	'	'	'	'	'	'	'	7.61%	5.44%
Income from life insurance, Percent of Pretax Income	'	'	'	'	'	'	'	'	-6.43%	-8.01%
Non-deductible merger related expense, Percent of Pretax Income	'	'	'	'	'	'	'	'	5.38%	'
Other, Percent of Pretax Income	'	'	'	'	'	'	'	'	1.53%	2.39%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent, Total	'	'	'	'	'	'	'	'	42.09%	33.82%

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Apr. 30, 2008
Income Tax Reconciliation [Line Items]	'	'
Operating loss carryforwards, net	$3.80	'
Operating loss carryforwards expiry year	'2026	'
Operating loss carryforwards annual limits	'	1.6
Bad debt reserve	6.2	'
Bad debt reserve, income tax effect	$2.40	'

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Colgate Investments, LLC	'	'
Related Party Transaction [Line Items]	'	'
Rent expense paid	$74,000	$76,000
Rent expense payable	74,000	'
Lot 17 Newport Drive, LLC	'	'
Related Party Transaction [Line Items]	'	'
Rent expense paid	37,500	0
Rent expense payable	$75,000	'

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Fair value measurement, transfers between levels	$0	'
Foreclosed real estate	$2,861,000	$1,674,000

Financial_Instruments_Measured

Financial Instruments Measured at Fair Value on Recurring Basis (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2012		Sep. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Loans held for sale	$806		'
Available For Sale Securities	4,628		4,754
Financial instruments measured at fair value	218,997		224,804
Total changes in fair values included in period earnings	370	[1]	'
Significant Other Observable Inputs (Level 2)	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Loans held for sale	806		'
Financial instruments measured at fair value	218,897		224,704
Significant Unobservable Inputs (Level 3)	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Financial instruments measured at fair value	100		100
Private Label Collateralized Mortgage Obligations	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	9,034		4,614
Total changes in fair values included in period earnings	370	[1]	'
Private Label Collateralized Mortgage Obligations | Significant Other Observable Inputs (Level 2)	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	9,034		4,614
Equity Investments	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	100		100
Equity Investments | Significant Unobservable Inputs (Level 3)	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	100		100
Corporate Bonds	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	4,528		4,654
Corporate Bonds | Significant Other Observable Inputs (Level 2)	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	4,528		4,654
GNMA certificates	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	3,417		3,384
GNMA certificates | Significant Other Observable Inputs (Level 2)	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	3,417		3,384
FNMA certificates | Certificate of Deposit	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	12,530		22,040
FNMA certificates | Significant Other Observable Inputs (Level 2) | Certificate of Deposit	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	12,530		22,040
FHLMC participating certificates	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	5,853		8,187
FHLMC participating certificates | Significant Other Observable Inputs (Level 2)	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	5,853		8,187
Collateralized Mortgage Obligations	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	182,729		181,825
Collateralized Mortgage Obligations | Significant Other Observable Inputs (Level 2)	'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]	'		'
Available For Sale Securities	$182,729		$181,825
[1]	Represents other-than-temporary impairment charges taken during the fiscal year ended September 30, 2012.

Summary_of_Changes_In_Recorded

Summary of Changes In Recorded Amount of Assets Classified as Level 3 in Fair Value Hierarchy (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'	'
Beginning Balance	$100,000	$100,000
Equity investment purchases	'	'
Ending Balance	$100,000	$100,000

Impaired_Loans_Foreclosed_Real

Impaired Loans, Foreclosed Real Estate and Repossessed Assets Classified as Level Three (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
In Thousands, unless otherwise specified
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Premises and equipment held for sale	'	$208
Foreclosed Real Estate	2,861	1,674
Impaired Loans	21,683	22,195
Residential Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	1,454	1,163
Residential Rental Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	6,362	6,295
Commercial Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	8,381	5,449
Construction Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	2,360	7,196
Home Equity Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	265	210
Significant Unobservable Inputs (Level 3)	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Premises and equipment held for sale	'	208
Foreclosed Real Estate	2,861	1,674
Impaired Loans	21,683	22,195
Significant Unobservable Inputs (Level 3) | Residential Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	1,454	1,163
Significant Unobservable Inputs (Level 3) | Residential Rental Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	6,362	6,295
Significant Unobservable Inputs (Level 3) | Commercial Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	8,381	5,449
Significant Unobservable Inputs (Level 3) | Construction Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	2,360	7,196
Significant Unobservable Inputs (Level 3) | Home Equity Loans	'	'
Fair Value, Measurement Inputs, Disclosure [Line Items]	'	'
Impaired Loans	$265	$210

Carrying_Amounts_and_Estimated

Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012
Financial Assets	'	'
Cash	$8,073,000	$8,389,000
Interest-bearing deposits in other banks	11,534,000	11,501,000
Federal Funds sold	6,847,000	31,034,000
Investment securities available for sale	4,754,000	4,628,000
Loans available for sale	'	806,000
Loan Receivable	'	'
Mortgage Loans	322,508,000	332,665,000
Share Loans	439,000	290,000
Consumer Loans	1,189,000	1,855,000
Mortgage-backed securities-Available for Sale	220,050,000	213,563,000
Federal Home Loan Bank of Atlanta Stock	771,000	959,000
Federal Reserve Bank Stock	1,394,000	1,381,000
Bank owned life insurance	17,473,000	16,869,000
Accrued interest receivable	1,700,000	2,024,000
Mortgage servicing rights	12,000	53,000
Financial Liabilities	'	'
Deposits	543,769,000	566,356,000
Junior Subordinated Debt	17,011,000	17,011,000
Accrued interest payable	27,000	63,000
Fair Value	'	'
Financial Assets	'	'
Cash	8,073,000	8,389,000
Interest-bearing deposits in other banks	11,534,000	11,501,000
Federal Funds sold	6,847,000	31,034,000
Investment securities available for sale	4,754,000	4,628,000
Loans available for sale	'	806,000
Loan Receivable	'	'
Mortgage Loans	338,046,000	358,297,000
Share Loans	439,000	290,000
Consumer Loans	1,189,000	1,816,000
Mortgage-backed securities-Available for Sale	220,050,000	213,563,000
Federal Home Loan Bank of Atlanta Stock	771,000	959,000
Federal Reserve Bank Stock	1,394,000	1,381,000
Bank owned life insurance	17,473,000	16,869,000
Accrued interest receivable	1,700,000	2,024,000
Mortgage servicing rights	12,000	53,000
Financial Liabilities	'	'
Deposits	541,527,000	567,848,000
Junior Subordinated Debt	17,011,000	17,011,000
Accrued interest payable	27,000	63,000
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)	'	'
Financial Assets	'	'
Cash	8,073,000	8,389,000
Interest-bearing deposits in other banks	11,534,000	11,501,000
Federal Funds sold	6,847,000	31,034,000
Loan Receivable	'	'
Federal Home Loan Bank of Atlanta Stock	771,000	959,000
Federal Reserve Bank Stock	1,394,000	1,381,000
Bank owned life insurance	17,473,000	16,869,000
Significant Other Observable Inputs (Level 2)	'	'
Financial Assets	'	'
Investment securities available for sale	4,654,000	4,528,000
Loans available for sale	'	806,000
Loan Receivable	'	'
Mortgage-backed securities-Available for Sale	220,050,000	213,563,000
Accrued interest receivable	1,700,000	2,024,000
Financial Liabilities	'	'
Deposits	541,527,000	567,848,000
Junior Subordinated Debt	17,011,000	17,011,000
Accrued interest payable	27,000	63,000
Significant Unobservable Inputs (Level 3)	'	'
Financial Assets	'	'
Investment securities available for sale	100,000	100,000
Loan Receivable	'	'
Mortgage Loans	338,046,000	358,297,000
Share Loans	439,000	290,000
Consumer Loans	1,189,000	1,816,000
Mortgage servicing rights	$12,000	$53,000

Component_of_Accumulated_Other

Component of Accumulated Other Comprehensive Income Net of Tax (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'
Beginning balance	$1,511
Other Comprehensive Loss Before Reclassifications	-6,155
Amounts Reclassified from Accumulated Other Comprehensive Income net of tax $(27)	-42
Net Current-Period Other Comprehensive Loss	-6,197
Ending balance	-4,686
Amortization of Unrealized Holding Gains on Investment Securities	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'
Beginning balance	1,511	[1]
Other Comprehensive Loss Before Reclassifications	-6,155	[1]
Amounts Reclassified from Accumulated Other Comprehensive Income net of tax $(27)	-42	[1]
Net Current-Period Other Comprehensive Loss	-6,197	[1]
Ending balance	($4,686)	[1]
[1]	Amounts in parenthesis indicate debits

Component_of_Accumulated_Other1

Component of Accumulated Other Comprehensive Income Net of Tax (Parenthetical) (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'
Amounts Reclassified from Accumulated Other Comprehensive Income net of tax, tax expenses	($27)
Amortization of Unrealized Holding Gains on Investment Securities	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'
Amounts Reclassified from Accumulated Other Comprehensive Income net of tax, tax expenses	($27)	[1]
[1]	Amounts in parenthesis indicate debits

Reclassifications_of_Accumulat

Reclassifications of Accumulated Other Comprehensive Income (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'	'	'	'	'	'	'
Gain on Sale of Mortgage-Backed Securities	'	'	'	'	'	'	'	'	$69	($6)
Income tax expense	-579	-236	-135	-373	-174	-214	-295	-237	-1,323	-920
Net income	'	'	'	'	'	'	'	'	1,820	1,800
Reclassification out of Accumulated Other Comprehensive Income	'	'	'	'	'	'	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'	'	'	'	'	'	'
Gain on Sale of Mortgage-Backed Securities	'	'	'	'	'	'	'	'	69	'
Income tax expense	'	'	'	'	'	'	'	'	-27	'
Net income	'	'	'	'	'	'	'	'	$42	'

Statements_of_Financial_Condit

Statements of Financial Condition (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Assets	'	'	'
Cash	$8,073,000	$8,389,000	'
Interest bearing deposits in other banks	11,534,000	11,501,000	'
Accrued interest receivable	1,700,000	2,024,000	'
Total assets	619,041,000	645,099,000	'
Liabilities:	'	'	'
Junior subordinated debentures	17,011,000	17,011,000	'
Other liabilities	8,461,000	6,593,000	'
Total Liabilities	569,241,000	589,960,000	'
Total stockholders' equity	49,800,000	55,139,000	51,959,000
Total liabilities and stockholders' equity	619,041,000	645,099,000	'
BCSB Bancorp Inc	'	'	'
Assets	'	'	'
Cash	1,358,000	2,341,000	'
Interest bearing deposits in other banks	220,000	219,000	'
Employee stock ownership plan loan	901,000	968,000	'
Accrued interest receivable	35,000	38,000	'
Investment in subsidiaries	63,188,000	67,355,000	'
Prepaid and deferred income taxes	1,372,000	1,530,000	'
Other assets	266,000	11,000	'
Total assets	67,340,000	72,462,000	'
Liabilities:	'	'	'
Junior subordinated debentures	17,011,000	17,011,000	'
Other liabilities	529,000	312,000	'
Total Liabilities	17,540,000	17,323,000	'
Total stockholders' equity	49,800,000	55,139,000	'
Total liabilities and stockholders' equity	$67,340,000	$72,462,000	'

Statements_of_Operations_Detai

Statements of Operations (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012
Condensed Income Statements, Captions [Line Items]	'	'	'	'	'	'	'	'	'	'
Interest and Fees on loans	'	'	'	'	'	'	'	'	$19,365	$20,929
Other interest income	'	'	'	'	'	'	'	'	73	130
Total interest income	'	'	'	'	'	'	'	'	24,438	26,071
Net interest income	4,601	4,642	4,759	5,114	4,838	4,725	4,761	4,770	19,116	19,094
Non-interest expense	'	'	'	'	'	'	'	'	'	'
Professional fees	'	'	'	'	'	'	'	'	324	511
Merger related expense	'	'	'	'	'	'	'	'	579	'
Other expenses	4,082	4,519	4,538	4,267	4,454	4,192	4,663	4,315	350	525
Total non-interest expense	'	'	'	'	'	'	'	'	17,406	17,624
Income before income tax expense	1,021	672	438	1,012	570	582	869	699	3,143	2,720
Income tax benefit	579	236	135	373	174	214	295	237	1,323	920
Net income	'	'	'	'	'	'	'	'	1,820	1,800
BCSB Bancorp Inc	'	'	'	'	'	'	'	'	'	'
Condensed Income Statements, Captions [Line Items]	'	'	'	'	'	'	'	'	'	'
Interest and Fees on loans	'	'	'	'	'	'	'	'	48	52
Other interest income	'	'	'	'	'	'	'	'	28	26
Total interest income	'	'	'	'	'	'	'	'	76	78
Interest expense on borrowings	'	'	'	'	'	'	'	'	613	644
Net interest income	'	'	'	'	'	'	'	'	-537	-566
Non-interest expense	'	'	'	'	'	'	'	'	'	'
Professional fees	'	'	'	'	'	'	'	'	71	85
Merger related expense	'	'	'	'	'	'	'	'	579	'
Other expenses	'	'	'	'	'	'	'	'	324	171
Total non-interest expense	'	'	'	'	'	'	'	'	974	256
Income before income tax expense	'	'	'	'	'	'	'	'	-1,511	-822
Income tax benefit	'	'	'	'	'	'	'	'	-345	-283
Loss before equity in net income of subsidiary	'	'	'	'	'	'	'	'	-1,166	-539
Equity in net income of subsidiary	'	'	'	'	'	'	'	'	2,986	2,339
Net income	'	'	'	'	'	'	'	'	$1,820	$1,800

Statements_of_Cash_Flows_Detai

Statements of Cash Flows (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Schedule Of Condensed Consolidating Statement Of Cash Flows [Line Items]	'	'
Net income	$1,820	$1,800
Adjustments to reconcile net income to net cash (used) provided by Operating Activities	'	'
Increase in other liabilities	1,920	794
Net cash (used) provided by operating activities	8,466	6,200
Cash Flows from Financing Activities	'	'
Stock purchase	-70	-40
Redemption of stock warrants	-1,442	'
Exercised stock options	7	'
Net cash (used) provided by financing activities	-24,146	16,230
(Decrease) increase in cash and cash equivalents	-24,470	-9,184
Cash and cash equivalents at beginning of period	50,924	60,108
Cash and cash equivalents at end of period	26,454	50,924
BCSB Bancorp Inc	'	'
Schedule Of Condensed Consolidating Statement Of Cash Flows [Line Items]	'	'
Net income	1,820	1,800
Adjustments to reconcile net income to net cash (used) provided by Operating Activities	'	'
Equity in net income of subsidiary	-2,986	-2,339
Decrease in accrued interest receivable	3	'
Decrease in prepaid and deferred income taxes	158	2,154
Decrease in receivable from subsidiary	67	64
(Increase) decrease in other assets	-256	9
Increase in other liabilities	215	111
Net cash (used) provided by operating activities	-979	1,799
Cash Flows from Financing Activities	'	'
Dividends from subsidiary	1,500	'
Stock purchase	-68	-40
Redemption of stock warrants	-1,442	'
Exercised stock options	7	'
Net cash (used) provided by financing activities	-3	-40
(Decrease) increase in cash and cash equivalents	-982	1,759
Cash and cash equivalents at beginning of period	2,560	801
Cash and cash equivalents at end of period	$1,578	$2,560

Merger_Additional_Information_

Merger - Additional Information (Detail) (USD $)	12 Months Ended
	Sep. 30, 2013
Business Acquisition [Line Items]	'
Merger Agreement Date	13-Jun-13
Share Exchange Ratio	$2.08
Merger Completion Expected year	'2014

Summary_of_Unaudited_Quarterly

Summary of Unaudited Quarterly Financial Data (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012
Quarterly Financial Information [Line Items]	'	'	'	'	'	'	'	'	'	'
Interest Income	$5,832	$5,908	$6,100	$6,598	$6,464	$6,392	$6,514	$6,701	'	'
Interest Expense	1,231	1,266	1,341	1,484	1,626	1,667	1,753	1,931	5,322	6,977
Net interest income	4,601	4,642	4,759	5,114	4,838	4,725	4,761	4,770	19,116	19,094
Provision for Loan Losses	'	150	450	500	300	300	300	300	1,100	1,200
Net Interest Income after provision for loan losses	4,601	4,492	4,309	4,614	4,538	4,425	4,461	4,470	18,016	17,894
Other Income	502	699	667	665	486	349	1,071	544	2,533	2,450
Other expenses	4,082	4,519	4,538	4,267	4,454	4,192	4,663	4,315	350	525
Income before income tax expense	1,021	672	438	1,012	570	582	869	699	3,143	2,720
Income tax expense (benefit)	579	236	135	373	174	214	295	237	1,323	920
Net income available to common shareholders	$442	$436	$303	$639	$396	$368	$574	$462	$1,820	$1,800
Per share date:	'	'	'	'	'	'	'	'	'	'
Basic (loss) earnings per share	$0.14	$0.14	$0.09	$0.21	$0.13	$0.11	$0.19	$0.15	$0.58	$0.58
Diluted earnings (loss) per share	$0.13	$0.14	$0.09	$0.20	$0.12	$0.11	$0.18	$0.15	$0.56	$0.56