Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Preferred Stock (Details) (Series A preferred stock [Member], USD $)	1 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2012	Nov. 30, 2012	Dec. 31, 2011	Mar. 31, 2007 Liquidation preference [Member]
Class of Stock [Line Items]
Issued and outstanding shares of Series A preferred stock					5,000
Per share amount of Series A preferred stock			$ 1,000
Preferred stock dividend annual rate		$ 40
Current liability for dividends				$ 142,000
Series A preferred stock repurchased	5,000