Note 3 - Securities (Details) - Securities in a Continuous Unrealized Loss Position (USD $)	Mar. 31, 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	$ 18,947,742	$ 15,380,927
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(160,716)	(77,741)
Securities, continuous unrealized loss position, 12 months or more, fair value	26,765,723	45,352,264
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(425,678)	(1,071,883)
Securities, continuous unrealized loss position, fair value	45,713,465	60,733,191
Securities, continuous unrealized loss position, unrealized losses	(586,394)	(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	34,813	34,618
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(13,114)	(13,310)
Securities, continuous unrealized loss position, fair value	34,813	34,618
Securities, continuous unrealized loss position, unrealized losses	(13,114)	(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	2,955,390
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(26,890)
Securities, continuous unrealized loss position, 12 months or more, fair value	5,496,840	10,256,773
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(53,160)	(271,282)
Securities, continuous unrealized loss position, fair value	8,452,230	10,256,773
Securities, continuous unrealized loss position, unrealized losses	(80,050)	(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	4,670,544	2,677,626
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(20,668)	(7,692)
Securities, continuous unrealized loss position, 12 months or more, fair value	712,000	5,859,560
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(25,035)	(62,481)
Securities, continuous unrealized loss position, fair value	5,382,544	8,537,186
Securities, continuous unrealized loss position, unrealized losses	(45,703)	(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	3,880,000
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(60,947)
Securities, continuous unrealized loss position, fair value	3,880,000
Securities, continuous unrealized loss position, unrealized losses	(60,947)
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	7,441,808	12,703,301
Securities, continuous unrealized loss position, less than 12 months, unrealized losses	(52,211)	(70,049)
Securities, continuous unrealized loss position, 12 months or more, fair value	20,522,070	29,201,313
Securities, continuous unrealized loss position, 12 months or more, unrealized losses	(334,369)	(724,810)
Securities, continuous unrealized loss position, fair value	27,963,878	41,904,614
Securities, continuous unrealized loss position, unrealized losses	$ (386,580)	$ (794,859)