Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Mar. 31, 2014
Preferred shares, par value	$ 0.01	$ 0.01
Preferred shares, shares authorized	10,000,000us-gaap_PreferredStockSharesAuthorized	10,000,000us-gaap_PreferredStockSharesAuthorized
Preferred shares, shares issued	3,677us-gaap_PreferredStockSharesIssued	3,677us-gaap_PreferredStockSharesIssued
Preferred shares, shares outstanding	3,677us-gaap_PreferredStockSharesOutstanding	3,677us-gaap_PreferredStockSharesOutstanding
Preferred shares, liquidation preference	$ 3,677,000	$ 3,677,000
Common shares, par value	$ 0.01	$ 0.01
Common shares, shares authorized	75,000,000us-gaap_CommonStockSharesAuthorized	75,000,000us-gaap_CommonStockSharesAuthorized
Common shares, shares issued	52,965,797us-gaap_CommonStockSharesIssued	52,965,797us-gaap_CommonStockSharesIssued
Common shares, shares outstanding	27,129,832us-gaap_CommonStockSharesOutstanding	27,129,832us-gaap_CommonStockSharesOutstanding
Treasury stock, shares	25,835,965us-gaap_TreasuryStockShares	25,835,965us-gaap_TreasuryStockShares

Face amount or stated value per share of common stock.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Value of the difference between preference in liquidation and the par or stated values of the preferred shares.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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