Note 4 - Loans and Allowance for Loan Losses - Troubled Debt Restructurings (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Residential Portfolio Segment [Member] | One To Four Family Units [Member]
TDRs, carrying balance	$ 1,569,183	$ 1,556,964
Residential Portfolio Segment [Member] | Multi Family Units [Member]
TDRs, carrying balance
Residential Portfolio Segment [Member] | Construction Loans [Member]
TDRs, carrying balance	7,536,662	8,079,807
Commercial Real Estate Portfolio Segment [Member]
TDRs, carrying balance	161,491	161,491
Commercial Portfolio Segment [Member]
TDRs, carrying balance	416,980	1,442,476
Consumer Portfolio Segment [Member] | Other Loans [Member]
TDRs, carrying balance
TDRs, carrying balance	$ 9,684,316	$ 11,240,738