Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value of Assets Measured on Recurring Basis (USD $)	Jun. 30, 2013	Dec. 31, 2012
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	$ 109,260,193	$ 101,980,644
Other Equity Securities [Member] | 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	87,000	71,000
Other 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	87,000	71,000
US Government Agencies Debt Securities [Member] | 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	40,739,000	38,351,000
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	40,738,848	38,351,061
Municipals [Member] | 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	12,881,000	10,378,000
Municipals [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	12,881,000	10,378,000
Domestic Corporate Debt Securities [Member] | 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	978,000	1,908,000
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	978,104	1,907,865
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | 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	54,575,000	51,273,000
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	54,575,469	51,272,615
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	87,000	71,000
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	$ 109,173,000	$ 101,910,000