Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	9,675,200us-gaap_PreferredStockSharesAuthorized	9,675,200us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares outstanding	0us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	150,000,000us-gaap_CommonStockSharesAuthorized	150,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	85,582,502us-gaap_CommonStockSharesIssued	83,882,577us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	85,582,502us-gaap_CommonStockSharesOutstanding	83,882,577us-gaap_CommonStockSharesOutstanding
Series D Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	134,800	134,800
Preferred stock, shares issued	32,400	32,400
Preferred stock, shares outstanding	32,400	32,400

Face amount or stated value per share of common stock.

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