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Note 1 - Fair Values of Cash, Accounts Receivable, Accounts Payable and Accrued Expenses (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Reported Value Measurement [Member]    
Short-term borrowings and long-term debt $ 25,195,452 $ 27,411,556
Estimate of Fair Value Measurement [Member]    
Short-term borrowings and long-term debt $ 25,195,452 $ 27,411,556