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Subsequent Events (Details) (USD $)	0 Months Ended
Subsequent Events (Details) (USD $)	Aug. 18, 2011	Aug. 29, 2011
Percentage of common stock outstanding that may be acquired under preferred stock conversion feature		16.60%
Common stock conversion rate, in dollars	$ 17.00
Preferred stock, dividend rate, percentage	7.75%
Series J [Member]
Preferred stock issued, shares	204,000
Preferred stock issued, par value	$ 0.001
Preferred stock issued, value	$ 204,000

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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- Definition

Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.

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