Note 3 - Securities (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities Pledged as Collateral, Book Value	$ 70,600,904		$ 53,355,716
Available-for-sale Securities Pledged as Collateral	70,644,189		52,907,065
Available-for-sale Securities, Gross Realized Gains	6,797	3,088
Available-for-sale Securities, Gross Realized Gain (Loss), Tax Effect	2,515	1,142
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	$ 45,713,465		$ 60,733,191
Percentage of Securities in Continuous Unrealized Loss Position to Total Investment Portfolio	52.00%		70.00%