Note 3 - Securities (Details) - USD ($)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities Pledged as Collateral, Book Value	$ 60,804,064		$ 53,355,716
Available-for-sale Securities Pledged as Collateral	59,966,322		52,907,065
Available-for-sale Securities, Gross Realized Gains	155,313	$ 10,691
Available-for-sale Securities, Gross Realized Gain (Loss), Tax Effect	57,466	$ 3,956
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	$ 64,533,448		$ 60,733,191
Percentage of Securities in Continuous Unrealized Loss Position to Total Investment Portfolio	77.00%		70.00%