Note 3 - Securities (Details) - Gross Unrealized Losses and Fair Value of Investments (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Note 3 - Securities (Details) - Gross Unrealized Losses and Fair Value of Investments [Line Items]
Securities Less than 12 Months Fair Value	$ 79,799,549	$ 29,543,265
Securities Less than 12 Months Unrealized Losses	(3,250,559)	(514,025)
Securities 12 Months or More Fair Value	7,097,452	578,230
Securities 12 Months or More Unrealized Losses	(309,691)	(39,742)
Securities Total Fair Value	86,897,001	30,121,495
Securities Total Unrealized Losses	(3,560,250)	(553,767)
Equity Securities [Member]
Note 3 - Securities (Details) - Gross Unrealized Losses and Fair Value of Investments [Line Items]
Securities Less than 12 Months Fair Value	0	0
Securities Less than 12 Months Unrealized Losses	0	0
Securities 12 Months or More Fair Value	26,720	39,930
Securities 12 Months or More Unrealized Losses	(21,207)	(31,604)
Securities Total Fair Value	26,720	39,930
Securities Total Unrealized Losses	(21,207)	(31,604)
US Government Agencies Debt Securities [Member]
Note 3 - Securities (Details) - Gross Unrealized Losses and Fair Value of Investments [Line Items]
Securities Less than 12 Months Fair Value	35,825,183	7,298,687
Securities Less than 12 Months Unrealized Losses	(1,238,747)	(39,706)
Securities 12 Months or More Fair Value	0	0
Securities 12 Months or More Unrealized Losses	0	0
Securities Total Fair Value	35,825,183	7,298,687
Securities Total Unrealized Losses	(1,238,747)	(39,706)
US States and Political Subdivisions Debt Securities [Member]
Note 3 - Securities (Details) - Gross Unrealized Losses and Fair Value of Investments [Line Items]
Securities Less than 12 Months Fair Value	10,303,846	2,648,047
Securities Less than 12 Months Unrealized Losses	(536,812)	(76,318)
Securities 12 Months or More Fair Value	516,704	538,300
Securities 12 Months or More Unrealized Losses	(33,696)	(8,138)
Securities Total Fair Value	10,820,550	3,186,347
Securities Total Unrealized Losses	(570,508)	(84,456)
Corporate Bonds [Member]
Note 3 - Securities (Details) - Gross Unrealized Losses and Fair Value of Investments [Line Items]
Securities Less than 12 Months Fair Value	985,026
Securities Less than 12 Months Unrealized Losses	(4,680)
Securities 12 Months or More Fair Value	0
Securities 12 Months or More Unrealized Losses	0
Securities Total Fair Value	985,026
Securities Total Unrealized Losses	(4,680)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 3 - Securities (Details) - Gross Unrealized Losses and Fair Value of Investments [Line Items]
Securities Less than 12 Months Fair Value	32,685,494	19,596,531
Securities Less than 12 Months Unrealized Losses	(1,470,320)	(398,001)
Securities 12 Months or More Fair Value	6,554,028	0
Securities 12 Months or More Unrealized Losses	(254,788)	0
Securities Total Fair Value	39,239,522	19,596,531
Securities Total Unrealized Losses	$ (1,725,108)	$ (398,001)