Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Preferred stock, shares authorized	5,000,000us-gaap_PreferredStockSharesAuthorized	5,000,000us-gaap_PreferredStockSharesAuthorized
Series B preferred stock, par value (in Dollars per share)	$ 0.25	$ 0.25
Series B preferred stock, shares issued	157,816us-gaap_PreferredStockSharesIssued	157,816us-gaap_PreferredStockSharesIssued
Series B preferred stock, shares outstanding	157,816us-gaap_PreferredStockSharesOutstanding	157,816us-gaap_PreferredStockSharesOutstanding
Series B preferred stock, liquidation preference (in Dollars)	$ 7,891	$ 7,891
Common stock, par value (in Dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized	500,000,000us-gaap_CommonStockSharesAuthorized	500,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares outstanding	369,992,839us-gaap_CommonStockSharesOutstanding	367,376,863us-gaap_CommonStockSharesOutstanding
Common stock, shares issued	369,992,839us-gaap_CommonStockSharesIssued	367,376,863us-gaap_CommonStockSharesIssued
Treasury stock, shares	2,433,518us-gaap_TreasuryStockShares	2,151,482us-gaap_TreasuryStockShares

Face amount or stated value per share of common stock.

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