Note 20 - Condensed Parent Company Statements (Details) - Statements of Comprehensive Income - USD ($)	3 Months Ended				12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Statement of Income Captions [Line Items]
NET INCOME	$ 1,782,104	$ 1,360,483	$ 1,338,683	$ 1,301,426	$ 5,716,767	$ 5,782,696	$ 5,239,707
OTHER ITEMS OF COMPREHENSIVE INCOME (LOSS):
Change in unrealized gain (loss) on investment securities available-for-sale, before income taxes					(186,775)	3,300,555	(5,029,478)
Income tax expense related to other items of comprehensive income					(138,330)	1,208,565	(1,942,249)
Comprehensive income (loss) of Bank					5,481,232	7,840,523	1,932,633
Parent Company [Member]
Condensed Statement of Income Captions [Line Items]
NET INCOME					5,716,767	5,782,696	5,239,707
OTHER ITEMS OF COMPREHENSIVE INCOME (LOSS):
Change in unrealized gain (loss) on investment securities available-for-sale, before income taxes					(5,507)	5,718	28,392
Income tax expense related to other items of comprehensive income					2,038	2,117	10,505
Other comprehensive income (loss)					(7,545)	3,601	17,887
Comprehensive income (loss) of Bank					(227,990)	2,054,226	(3,324,961)
TOTAL COMPREHENSIVE INCOME					$ 5,481,232	$ 7,840,523	$ 1,932,633