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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Preferred stock, par value (in Dollars per share) $ 0us-gaap_PreferredStockParOrStatedValuePerShare $ 0us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized 1,000,000us-gaap_PreferredStockSharesAuthorized 1,000,000us-gaap_PreferredStockSharesAuthorized
Common stock, par value (in Dollars per share) $ 0us-gaap_CommonStockParOrStatedValuePerShare $ 0us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 40,000,000us-gaap_CommonStockSharesAuthorized 40,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares outstanding 16,899,382us-gaap_CommonStockSharesOutstanding 16,976,839us-gaap_CommonStockSharesOutstanding