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Intrinsic value of embedded beneficial conversion feature.

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The cash inflow associated with the amount received from entity's raising of capital via registered direct offering, net of related financing costs.

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The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement, net of related financing costs.

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Percentage of total number of shares of common stock then issued and outstanding limit on beneficial ownership.

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Preferred stock converted in to common stock.

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Preferred stock issued during period value new issues.

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Preferred stock purchased by officer.

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Date of private placement subscription agreement.

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Date of registered direct offering subscription agreement.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Number of warrants or rights outstanding.

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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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The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Equity Financings and Warrants (Details Textual) (USD $)	12 Months Ended		0 Months Ended						1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jun. 04, 2013	Jan. 22, 2013	Feb. 07, 2014	Feb. 03, 2014	Feb. 04, 2013	Jan. 31, 2013	Feb. 28, 2014
Equity financings and warrants (Textual) [Abstract]
Common stock, shares issued	21,150,486us-gaap_CommonStockSharesIssued	15,685,562us-gaap_CommonStockSharesIssued
Proceeds from the issuance of common stock	$ 9,038,000	$ 1,741,000
Proceeds from the issuance of preferred stock		20,000,000
Number of warrants outstanding	9,371,002
Class of warrant or rights expiration date earliest	2016-04
Class of warrant or rights expiration date latest	2020-01
Minimum
Equity financings and warrants (Textual) [Abstract]
Warrant price per share	$ 1.60
Maximum
Equity financings and warrants (Textual) [Abstract]
Warrant price per share	$ 116.89
Weighted Average
Equity financings and warrants (Textual) [Abstract]
Warrant price per share	$ 2.31
Public Offering \| Preferred Stock
Equity financings and warrants (Textual) [Abstract]
Number of shares of preferred stock converted in to common stock		125,000
Public Offering \| Common stock
Equity financings and warrants (Textual) [Abstract]
Number of shares of common stock issued in conversion of preferred stock		12,500,000
Series A Convertible Preferred Stock \| Preferred Stock
Equity financings and warrants (Textual) [Abstract]
Issuance of Series A convertible preferred stock, net of offering costs, shares		125,000
Series A Convertible Preferred Stock \| Public Offering
Equity financings and warrants (Textual) [Abstract]
Warrants available to purchase additional commons shares			6,250,000
Warrant coverage ratio			50
Purchase price for common stock unit			$ 160
Warrants were exercisable upon issuance, expiry year			5 years
Warrant price per share			$ 1.60
Proceeds from the issuance of common stock			17,900,000
Issuance of Series A convertible preferred stock, net of offering costs, shares			125,000
Proceeds from the issuance of preferred stock			20,000,000
Common stock shares issued upon conversion of each share of convertible preferred stock			100
Preferred stock liquidation preference per share			$ 0.001
Percentage of total number of shares of common stock then issued and outstanding limit on beneficial ownership			9.99%
Intrinsic value of embedded beneficial conversion feature			2,000,000
Director and Chief Executive Officer \| Public Offering
Equity financings and warrants (Textual) [Abstract]
Warrants available to purchase additional commons shares			39,050
Preferred Stock Purchased by Officer			781
PIPE Transaction
Equity financings and warrants (Textual) [Abstract]
Common stock, shares issued				356,430
Warrants available to purchase additional commons shares				249,501
Aggregate gross proceeds				1,000,000
Net proceeds from issuance of private placement				805,000
Public Equity Offering Close Date	Jan. 25, 2013
Subscription agreement date	Jan. 22, 2013
Warrant coverage ratio				0.70
Purchase price for common stock unit				$ 2.81
Warrants were exercisable upon issuance, expiry year				7 years
Warrant price per share				$ 2.28
Closing bid price of the common stock				100.00%
Closing bid price date	Jan. 22, 2013
Registered Direct Offering
Equity financings and warrants (Textual) [Abstract]
Common stock, shares issued						5,116,228		164,636
Warrants available to purchase additional commons shares						1,279,057		65,855
Public Equity Offering Close Date	Feb. 07, 2014							Feb. 04, 2013
Warrant coverage ratio						0.25		0.40
Purchase price for common stock unit						$ 1.70		$ 4.43
Warrants were exercisable upon issuance, expiry year						5 years		5 years
Warrant price per share						$ 2.125		$ 4.13
Closing bid price of the common stock						125.00%
Closing bid price date	Feb. 03, 2014	Jan. 31, 2013
Proceeds from the issuance of common stock						8,700,000		730,000	7,900,000
Proceeds from the issuance of common stock					$ 7,900,000		$ 616,000
Subscription agreement date								Jan. 31, 2013