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Note 2 - Summary of Significant Accounting Policies (Details) - Allowance for Doubtful Accounts (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]      
Balance, beginning of the year $ 337,459 $ 334,473  
Balance, end of the year 593,023 337,459 334,473
Amounts provided 238,071 135,353 331,528
Amounts written off 0 (135,353) (2,047)
Foreign Currency Spot Rate [Member]
     
Financing Receivable, Allowance for Credit Losses [Line Items]      
Amounts provided $ 255,564 $ 138,339