Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	$ 83,408,795	$ 86,467,985
Equity Securities [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	110,565	105,023
US Government Agencies Debt Securities [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	8,379,299	10,256,773
US States and Political Subdivisions Debt Securities [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	15,818,471	15,589,890
Domestic Corporate Debt Securities [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	3,899,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	55,201,710	60,516,299
Fair Value, Inputs, Level 1 [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	111,000	105,000
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	111,000	105,000
Fair Value, Inputs, Level 2 [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	83,298,000	86,363,000
Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	8,379,000	10,257,000
Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	15,818,000	15,590,000
Fair Value, Inputs, Level 2 [Member] | Domestic Corporate Debt Securities [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	3,899,000
Fair Value, Inputs, Level 2 [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis [Line Items]
Available-for-sale securities	$ 55,202,000	$ 60,516,000