Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Preferred Stock, par value	$ 0.001	$ 0.001
Preferred Stock, shares authorized	5,000,000us-gaap_PreferredStockSharesAuthorized	5,000,000us-gaap_PreferredStockSharesAuthorized
Common Stock, par value	$ 0.001	$ 0.001
Common Stock, shares authorized	75,000,000us-gaap_CommonStockSharesAuthorized	75,000,000us-gaap_CommonStockSharesAuthorized
Common Stock, shares issued	52,381,638us-gaap_CommonStockSharesIssued	51,603,070us-gaap_CommonStockSharesIssued
Common Stock, shares outstanding	52,366,147us-gaap_CommonStockSharesOutstanding	51,587,579us-gaap_CommonStockSharesOutstanding
Treasury stock, shares	15,491us-gaap_TreasuryStockShares	15,491us-gaap_TreasuryStockShares
Series A Non-Voting Convertible Preferred Stock [Member]
Preferred Stock, shares outstanding	2,093,155	2,139,000

Face amount or stated value per share of common stock.

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