Note 8 - Disclosures about Fair Value of Assets and Liabilities (Detail) - Fair Value of Assets Measured on Recurring Basis (USD $)	Mar. 31, 2013	Dec. 31, 2012
Available-for-sale securities	$ 107,435,939	$ 101,980,644
Other Equity Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities	84,000	71,000
Other Equity Securities [Member]
Available-for-sale securities	84,000	71,000
US Government Agencies Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities	41,980,000	38,351,000
US Government Agencies Debt Securities [Member]
Available-for-sale securities	41,980,066	38,351,061
Municipals [Member] \| Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities	10,256,000	10,378,000
Municipals [Member]
Available-for-sale securities	10,256,000	10,378,000
Domestic Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities	2,909,000	1,908,000
Domestic Corporate Debt Securities [Member]
Available-for-sale securities	2,909,229	1,907,865
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] \| Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities	52,207,000	51,273,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available-for-sale securities	52,207,232	51,272,615
Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities	84,000	71,000
Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities	$ 107,352,000	$ 101,910,000

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

+ References+ Details