Note 9 - Goodwill and Other Intangibles (Details) - Activity for Goodwill and Other Intangible Assets - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 9 - Goodwill and Other Intangibles (Details) - Activity for Goodwill and Other Intangible Assets [Line Items]
Goodwill	$ 4,218,576	$ 4,218,576
Total	6,401,485	4,226,436
Amortization, goodwill	0	0
Amortization, other intangibles	(287,396)	(7,860)
Amortization, total	(287,396)	(7,860)
Acquisitions, goodwill	0	0
Acquisitions, other intangibles	0	2,182,909
Acquisitions, total	0	2,182,909
Goodwill	4,218,576	4,218,576
Total	6,114,089	6,401,485
Core Deposits [Member]
Note 9 - Goodwill and Other Intangibles (Details) - Activity for Goodwill and Other Intangible Assets [Line Items]
Other intangibles	2,182,909	7,860
Amortization, other intangibles	(287,396)	(7,860)
Amortization, total	(287,396)	(7,860)
Acquisitions, other intangibles	0	2,182,909	[1]
Acquisitions, total	0	2,182,909	[1]
Other intangibles	$ 1,895,513	$ 2,182,909

[1] CDI related to the acquisition of branch offices from Bank of America, N.A. on December 12, 2014.