Note 14 - Goodwill and Other Intangibles (Details) - Rollforward of Core Deposit Intangible (Core Deposits [Member], USD $)	12 Months Ended
	Dec. 31, 2014		Mar. 31, 2015	Dec. 31, 2013
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount at December 31, 2013 (1)				$ 287,832	[1]
Accumulated amortization	(7,860)		(71,848)	(279,972)
Acquisitions (2)	2,182,909	[2]
Net book value	$ 2,182,909		$ 2,111,061	$ 7,860

[1] CDI related to the acquisition of Green Street Financial Corp on November 30, 1999.

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