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CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)
Dec. 31, 2014
Dec. 31, 2013
Trade accounts receivable, allowance for doubtful accounts (in dollars) $ 1,392,989us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 1,309,859us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Preferred stock, par value (in dollars per share) $ 0.000001us-gaap_PreferredStockParOrStatedValuePerShare $ 0.000001us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized 5,000,000us-gaap_PreferredStockSharesAuthorized 5,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding 0us-gaap_PreferredStockSharesOutstanding 0us-gaap_PreferredStockSharesOutstanding
Common stock, par value (in dollars per share) $ 0.000001us-gaap_CommonStockParOrStatedValuePerShare $ 0.000001us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 95,000,000us-gaap_CommonStockSharesAuthorized 95,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 6,679,646us-gaap_CommonStockSharesIssued 5,343,282us-gaap_CommonStockSharesIssued
Common Stock, shares outstanding 6,679,646us-gaap_CommonStockSharesOutstanding 5,343,282us-gaap_CommonStockSharesOutstanding