Note 1 - Activities and Summary of Significant Accounting Policies	9 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	Note 1. Activities and Summary of Significant Accounting Policies Madison Bancorp, Inc., the “Company”, was incorporated on May 20, 2010, to be the holding company for Madison Square Federal Savings Bank, the “Bank”, in conjunction with the Bank’s conversion from the mutual to stock form of ownership. On October 6, 2010, in accordance with a Plan of Conversion adopted by its Board of Directors and approved by its members, the Bank converted from a mutual savings bank to a stock savings bank and became the wholly owned subsidiary of the Company. The conversion was accomplished through the sale and issuance of 608,116 shares of common stock at a price of $10.00 per share, through which the Company received proceeds of $5,340,068, net of offering expenses of $741,092. In connection with the conversion, the Bank’s Board of Directors adopted an employee stock ownership plan, the “ESOP”, which subscribed for 7% of the number of shares sold in the offering, or 42,568 shares of common stock. In accordance with applicable regulations governing the conversion, upon the completion of the conversion, the Bank restricted retained earnings by establishing a liquidation account. The liquidation account will be maintained for the benefit of eligible account holders who continue to maintain their accounts at the Bank after conversion. The liquidation account will be reduced annually to the extent that eligible account holders have reduced their qualifying deposits. Subsequent increases will not restore an eligible account holder’s interest in the liquidation account. In the event of a complete liquidation of the Bank, and only in such event, each account holder will be entitled to receive a distribution from the liquidation account in an amount proportionate to the adjusted qualifying account balances then held. The Bank may not pay dividends if those dividends would reduce equity capital below the required liquidation account amount. Madison Square Federal Savings Bank was incorporated in 1870 under the laws of the State of Maryland. The Bank is a federally chartered savings bank engaged in banking and related services primarily in the Baltimore Metropolitan area. Summary of Significant Accounting Policies The foregoing consolidated financial statements are unaudited; however, in the opinion of management, we have included all adjustments (comprising only normal recurring accruals) necessary for a fair presentation of the results of the interim period. We derived the balances as of March 31, 2013 from audited financial statements. These statements should be read in conjunction with Madison Bancorp’s financial statements and accompanying notes included in Madison Bancorp’s Form 10-K for the year ended March 31, 2013. We have made no significant changes to Madison Bancorp’s accounting policies as disclosed in the Form 10-K. The accounting and reporting policies of Madison Bancorp, Inc. and Subsidiaries (collectively “Madison”) conform to accounting principles generally accepted in the United States of America, “U.S. GAAP”, and to general practices in the banking industry. The more significant policies follow: *Principles of Consolidation. The accompanying consolidated financial statements include the accounts of the parent company and its wholly owned subsidiary, Madison Square Federal Savings Bank and its wholly owned subsidiary, Madison Financial Services Corporation, “MFSC”. MFSC is engaged in the business of insurance and brokerage services primarily in the Baltimore area. All significant intercompany balances and transactions have been eliminated in consolidation. Reclassifications.* Certain prior year amounts have been reclassified to conform to current period classifications. The reclassifications had no effect on net income or the net change in cash and cash equivalents and are not material to previously issued financial statements. *Use of Estimates.* The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and the accompanying notes. 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, deferred income tax valuation allowances, the fair value of investment securities, and other than temporary impairment of investment securities. *Subsequent Events. We evaluated subsequent events after December 31, 2013 through February 10, 2014, the date this report was available to be issued. No significant subsequent events were identified which would affect the presentation of the financial statements. Recently Adopted Accounting Guidance* ASU 2011-11, “Balance Sheet (Topic 210) - Disclosures about Offsetting Assets and Liabilities.” ASU 2011-11 amends Topic 210, “Balance Sheet,” to require an entity to disclose both gross and net information about financial instruments, such as sales and repurchase agreements, reverse sale and repurchase agreements and securities borrowing/lending arrangements, and derivative instruments that are eligible for offset in the statement of financial position and/or subject to a master netting arrangement or similar agreement. ASU 2011-11 is effective for annual and interim periods beginning on April 1, 2013, and did not have a significant impact on our financial statements. ASU 2012-02, “Intangibles – Goodwill and Other (Topic 350) – Testing Indefinite-Lived Intangible Assets for Impairment.” ASU 2012-02 gives entities the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that an indefinite-lived intangible asset is impaired. If, after assessing the totality of events or circumstances, an entity determines it is more likely than not that an indefinite-lived intangible asset is impaired, then the entity must perform the quantitative impairment test. If, under the quantitative impairment test, the carrying amount of the intangible asset exceeds its fair value, an entity should recognize an impairment loss in the amount of that excess. Permitting an entity to assess qualitative factors when testing indefinite-lived intangible assets for impairment results in guidance that is similar to the goodwill impairment testing guidance in ASU 2011-08. ASU 2012-02 became effective for the Company on April 1, 2013 and did not have a significant impact on our financial statements. ASU 2012-06, “Business Combinations (Topic 805) – Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution (a consensus of the FASB Emerging Issues Task Force).” ASU 2012-06 clarifies the applicable guidance for subsequently measuring an indemnification asset recognized as a result of a government-assisted acquisition of a financial institution. Under ASU 2012-06, when a reporting entity recognizes an indemnification asset as a result of a government-assisted acquisition of a financial institution and, subsequently, a change in the cash flows expected to be collected on the indemnification asset occurs (as a result of a change in cash flows expected to be collected on the assets subject to indemnification), the reporting entity should subsequently account for the change in the measurement of the indemnification asset on the same basis as the change in the assets subject to indemnification. Any amortization of changes in value should be limited to the contractual term of the indemnification agreement (that is, the lesser of the term of the indemnification agreement and the remaining life of the indemnified assets). ASU 2012-06 became effective for the Company on April 1, 2013 and did not have a significant impact on our financial statements. ASU 2013-02, “Comprehensive Income (Topic 220) – Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” ASU 2013-02 amends recent guidance related to the reporting of comprehensive income to enhance the reporting of reclassifications out of accumulated other comprehensive income. ASU 2013-02 became effective for the Company on April 1, 2013 and did not have a significant impact on our financial statements.

Note 1 - Activities and Summary of Significant Accounting Policies

9 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

Note 1. Activities and Summary of Significant Accounting Policies

Madison Bancorp, Inc., the “Company”, was incorporated on May 20, 2010, to be the holding company for Madison Square Federal Savings Bank, the “Bank”, in conjunction with the Bank’s conversion from the mutual to stock form of ownership. On October 6, 2010, in accordance with a Plan of Conversion adopted by its Board of Directors and approved by its members, the Bank converted from a mutual savings bank to a stock savings bank and became the wholly owned subsidiary of the Company. The conversion was accomplished through the sale and issuance of 608,116 shares of common stock at a price of $10.00 per share, through which the Company received proceeds of $5,340,068, net of offering expenses of $741,092. In connection with the conversion, the Bank’s Board of Directors adopted an employee stock ownership plan, the “ESOP”, which subscribed for 7% of the number of shares sold in the offering, or 42,568 shares of common stock.

In accordance with applicable regulations governing the conversion, upon the completion of the conversion, the Bank restricted retained earnings by establishing a liquidation account. The liquidation account will be maintained for the benefit of eligible account holders who continue to maintain their accounts at the Bank after conversion. The liquidation account will be reduced annually to the extent that eligible account holders have reduced their qualifying deposits. Subsequent increases will not restore an eligible account holder’s interest in the liquidation account. In the event of a complete liquidation of the Bank, and only in such event, each account holder will be entitled to receive a distribution from the liquidation account in an amount proportionate to the adjusted qualifying account balances then held. The Bank may not pay dividends if those dividends would reduce equity capital below the required liquidation account amount.

Madison Square Federal Savings Bank was incorporated in 1870 under the laws of the State of Maryland. The Bank is a federally chartered savings bank engaged in banking and related services primarily in the Baltimore Metropolitan area.

Summary of Significant Accounting Policies

The foregoing consolidated financial statements are unaudited; however, in the opinion of management, we have included all adjustments (comprising only normal recurring accruals) necessary for a fair presentation of the results of the interim period. We derived the balances as of March 31, 2013 from audited financial statements. These statements should be read in conjunction with Madison Bancorp’s financial statements and accompanying notes included in Madison Bancorp’s Form 10-K for the year ended March 31, 2013. We have made no significant changes to Madison Bancorp’s accounting policies as disclosed in the Form 10-K.

The accounting and reporting policies of Madison Bancorp, Inc. and Subsidiaries (collectively “Madison”) conform to accounting principles generally accepted in the United States of America, “U.S. GAAP”, and to general practices in the banking industry. The more significant policies follow:

Principles of Consolidation. The accompanying consolidated financial statements include the accounts of the parent company and its wholly owned subsidiary, Madison Square Federal Savings Bank and its wholly owned subsidiary, Madison Financial Services Corporation, “MFSC”. MFSC is engaged in the business of insurance and brokerage services primarily in the Baltimore area. All significant intercompany balances and transactions have been eliminated in consolidation.

Reclassifications. Certain prior year amounts have been reclassified to conform to current period classifications. The reclassifications had no effect on net income or the net change in cash and cash equivalents and are not material to previously issued financial statements.

Use of Estimates. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and the accompanying notes. 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, deferred income tax valuation allowances, the fair value of investment securities, and other than temporary impairment of investment securities.

Subsequent Events. We evaluated subsequent events after December 31, 2013 through February 10, 2014, the date this report was available to be issued. No significant subsequent events were identified which would affect the presentation of the financial statements.

Recently Adopted Accounting Guidance

ASU 2011-11, “Balance Sheet (Topic 210) - Disclosures about Offsetting Assets and Liabilities.” ASU 2011-11 amends Topic 210, “Balance Sheet,” to require an entity to disclose both gross and net information about financial instruments, such as sales and repurchase agreements, reverse sale and repurchase agreements and securities borrowing/lending arrangements, and derivative instruments that are eligible for offset in the statement of financial position and/or subject to a master netting arrangement or similar agreement. ASU 2011-11 is effective for annual and interim periods beginning on April 1, 2013, and did not have a significant impact on our financial statements.

ASU 2012-02, “Intangibles – Goodwill and Other (Topic 350) – Testing Indefinite-Lived Intangible Assets for Impairment.” ASU 2012-02 gives entities the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that an indefinite-lived intangible asset is impaired. If, after assessing the totality of events or circumstances, an entity determines it is more likely than not that an indefinite-lived intangible asset is impaired, then the entity must perform the quantitative impairment test. If, under the quantitative impairment test, the carrying amount of the intangible asset exceeds its fair value, an entity should recognize an impairment loss in the amount of that excess. Permitting an entity to assess qualitative factors when testing indefinite-lived intangible assets for impairment results in guidance that is similar to the goodwill impairment testing guidance in ASU 2011-08. ASU 2012-02 became effective for the Company on April 1, 2013 and did not have a significant impact on our financial statements.

ASU 2012-06, “Business Combinations (Topic 805) – Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution (a consensus of the FASB Emerging Issues Task Force).” ASU 2012-06 clarifies the applicable guidance for subsequently measuring an indemnification asset recognized as a result of a government-assisted acquisition of a financial institution. Under ASU 2012-06, when a reporting entity recognizes an indemnification asset as a result of a government-assisted acquisition of a financial institution and, subsequently, a change in the cash flows expected to be collected on the indemnification asset occurs (as a result of a change in cash flows expected to be collected on the assets subject to indemnification), the reporting entity should subsequently account for the change in the measurement of the indemnification asset on the same basis as the change in the assets subject to indemnification. Any amortization of changes in value should be limited to the contractual term of the indemnification agreement (that is, the lesser of the term of the indemnification agreement and the remaining life of the indemnified assets). ASU 2012-06 became effective for the Company on April 1, 2013 and did not have a significant impact on our financial statements.

ASU 2013-02, “Comprehensive Income (Topic 220) – Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” ASU 2013-02 amends recent guidance related to the reporting of comprehensive income to enhance the reporting of reclassifications out of accumulated other comprehensive income. ASU 2013-02 became effective for the Company on April 1, 2013 and did not have a significant impact on our financial statements.

- Definition

The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

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Madison Bancorp Inc 10-Q