Note 11 - Fair Value of Financial Instruments and Fair Value Measurements (Details) - Quantitative Information About Recurring Level 3 Fair Value Measurement - US States and Political Subdivisions Debt Securities [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
State, County and Municipal	$ 943
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.