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Note 16 - Segment Reporting (Details) - Summary of Valuation and Qualifying Accounts (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Allowance for Doubtful Accounts [Member]
      
Valuation Allowance [Line Items]      
Balance at beginning year $ 78,970 $ 62,415 $ 65,000
Charged to (recovered) costs and expenses 17,256 16,555 (2,585)
Balance at end of year 96,226 78,970 62,415
Valuation Allowance of Deferred Tax Assets [Member]
      
Valuation Allowance [Line Items]      
Balance at beginning year     3,655,070
Charged to (recovered) costs and expenses     $ (3,655,070)