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Note 11 - Derivatives and Fair Value Disclosures (Detail) - Financial Instruments (USD $)
Dec. 31, 2012
Dec. 31, 2011
Interest Rate Swap Agreements $ 539,904  
Interest Rate Swap Agreements 5,409,337 9,401,798
Total derivatives not designated as hedging instruments 5,949,241 9,401,798
Not Designated as Hedging Instrument [Member]
   
Interest Rate Swap Agreements 539,904  
Interest Rate Swap Agreements $ 5,409,337 $ 9,401,798