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Note 19 - Fair Value of Financial Instruments and Fair Value Measurements (Details) - Quantitative Information About Recurring Level 3 Fair Value Measurement - Fair Value, Inputs, Level 3 [Member] - US States and Political Subdivisions Debt Securities [Member] - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
State, County and Municipal $ 930,311 $ 948,390
State, County and Municipal [1]
[1] The Company relies on a third-party pricing service to value its municipal securities. The details of the unobservable inputs and other adjustments used by the third-party pricing service were not readily available to the Company.