Note 12 - Acquisition - Loans Acquired With Deteriorated Credit Quality (Details) - Twin Oaks [Member] - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Balance, beginning of period	$ 498,912	$ 1,201,159	$ 575,605	$ 1,323,648
Payment activity	(42,422)	(147,664)	(134,325)	(309,968)
Charge-offs				(19,810)
Transfer to OREO		(266,225)	(44,417)	(266,225)
Accretion to income	23,345	28,883	82,972	88,508
Balance, end of year	$ 479,835	$ 816,153	$ 479,835	$ 816,153