Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Preferred stock; shares authorized	20,000,000us-gaap_PreferredStockSharesAuthorized	20,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, par value	$ 0.001	$ 0.001
Common stock; shares authorized	975,000,000us-gaap_CommonStockSharesAuthorized	975,000,000us-gaap_CommonStockSharesAuthorized
Common stock; par value	$ 0.001	$ 0.001
Common stock; shares issued	161,277,132us-gaap_CommonStockSharesIssued	153,186,804us-gaap_CommonStockSharesIssued
Common stock; shares outstanding	161,277,132us-gaap_CommonStockSharesOutstanding	153,186,804us-gaap_CommonStockSharesOutstanding
Treasury stock, shares	13,000,000us-gaap_TreasuryStockShares	12,750,000us-gaap_TreasuryStockShares
Series C Preferred Stock [Member]
Preferred stock; shares issued		0	2,200,000
Preferred stock; shares outstanding		0	2,200,000
Preferred stock, liquidation preference		$ 0.001	$ 0.001

Face amount or stated value per share of common stock.

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