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Shareholders' Equity (Detail Textuals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012	Apr. 30, 1998 Vote
Equity [Abstract]
Number of preferred shares issued			250,000
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001	$ 0.001
Preferred shares,issued value (in dollars per share)			$ 4.00
Preferred shares, issuance costs			$ 112,187
Number of common stock converted			4.05
Liquidation value (in dollars per share)			$ 4.00
Number of votes			1
Number of shares remained unconverted and outstanding	2,500	2,500

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The issuance cost of preferred stock.

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Aggregate per share value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer).

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Number of shares issued for each share of convertible preferred stock that is converted.

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The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.

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Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.

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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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