Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Preferred stock par value (in Dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000us-gaap_PreferredStockSharesAuthorized	5,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Common stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	70,000,000us-gaap_CommonStockSharesAuthorized	70,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	21,035,654us-gaap_CommonStockSharesIssued	20,617,270us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	19,430,154us-gaap_CommonStockSharesOutstanding	19,764,634us-gaap_CommonStockSharesOutstanding

Face amount or stated value per share of common stock.

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