Note 3 - Securities (Details) - Securities in a Continuous Unrealized Loss Position - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Note 3 - Securities (Details) - Securities in a Continuous Unrealized Loss Position [Line Items]
Securities, continuous unrealized loss position, less than 12 months, fair value	$ 40,759,164	$ 15,380,927
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(631,247)	(77,741)
Securities, continuous unrealized loss position, 12 months or more, fair value	23,774,284	45,352,264
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(696,499)	(1,071,883)
Securities, continuous unrealized loss position, fair value	64,533,448	60,733,191
Securities, continuous unrealized loss position, unrealized losses	(1,327,746)	(1,149,624)
Equity Securities [Member]
Note 3 - Securities (Details) - Securities in a Continuous Unrealized Loss Position [Line Items]
Securities, continuous unrealized loss position, 12 months or more, fair value	35,915	34,618
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(12,012)	(13,310)
Securities, continuous unrealized loss position, fair value	35,915	34,618
Securities, continuous unrealized loss position, unrealized losses	(12,012)	(13,310)
US Government Agencies Debt Securities [Member]
Note 3 - Securities (Details) - Securities in a Continuous Unrealized Loss Position [Line Items]
Securities, continuous unrealized loss position, less than 12 months, fair value	2,911,150
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(71,662)
Securities, continuous unrealized loss position, 12 months or more, fair value	5,468,149	10,256,773
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(81,851)	(271,282)
Securities, continuous unrealized loss position, fair value	8,379,299	10,256,773
Securities, continuous unrealized loss position, unrealized losses	(153,513)	(271,282)
US States and Political Subdivisions Debt Securities [Member]
Note 3 - Securities (Details) - Securities in a Continuous Unrealized Loss Position [Line Items]
Securities, continuous unrealized loss position, less than 12 months, fair value	10,042,716	2,677,626
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(152,045)	(7,692)
Securities, continuous unrealized loss position, 12 months or more, fair value	702,305	5,859,560
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(32,709)	(62,481)
Securities, continuous unrealized loss position, fair value	10,745,021	8,537,186
Securities, continuous unrealized loss position, unrealized losses	(184,754)	(70,173)
Corporate Debt Securities [Member]
Note 3 - Securities (Details) - Securities in a Continuous Unrealized Loss Position [Line Items]
Securities, continuous unrealized loss position, less than 12 months, fair value	3,008,750
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(66,135)
Securities, continuous unrealized loss position, fair value	3,008,750
Securities, continuous unrealized loss position, unrealized losses	(66,135)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 3 - Securities (Details) - Securities in a Continuous Unrealized Loss Position [Line Items]
Securities, continuous unrealized loss position, less than 12 months, fair value	24,796,548	12,703,301
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(341,405)	(70,049)
Securities, continuous unrealized loss position, 12 months or more, fair value	17,567,915	29,201,313
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(569,927)	(724,810)
Securities, continuous unrealized loss position, fair value	42,364,463	41,904,614
Securities, continuous unrealized loss position, unrealized losses	$ (911,332)	$ (794,859)