Note 2 - Fair Value of Financial Instruments (Details) - Fair Value Measurements (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Financial Assets:
Cash and cash equivalents, carrying value	$ 32,897	$ 45,651	$ 61,847	$ 51,630
Cash and cash equivalents, fair value	32,897	45,651
Securities available for sale, carrying value	88,850	94,965
Securities available for sale, fair value	88,850	94,965
Securities held to maturity, carrying value	23,327	23,511
Securities held to maturity, fair value	23,480	24,624
Federal Home Loan Bank and Federal Reserve Bank stock, carrying value	7,776	6,281
Federal Home Loan Bank and Federal Reserve Bank stock, fair value
Loans, net, carrying value	548,947	551,383
Loans, net, fair value	555,574	564,059
Accrued interest receivable, carrying value	2,051	2,057
Accrued interest receivable, fair value	2,051	2,057
Financial liabilities:
Deposits, carrying value	628,833	655,064
Deposits, fair value	629,019	657,206
Other borrowed funds, carrying value	18,986	14,285
Other borrowed funds, fair value	17,886	14,536
Subordinated debentures, carrying value	8,500	13,500
Subordinated debentures, fair value	4,888	10,146
Accrued interest payable, carrying value	861	1,377
Accrued interest payable, fair value	861	1,377
Fair Value, Inputs, Level 1 [Member]
Financial Assets:
Cash and cash equivalents, fair value	32,897	45,651
Securities available for sale, carrying value	0	0
Securities available for sale, fair value	0	0
Securities held to maturity, fair value	0	0
Federal Home Loan Bank and Federal Reserve Bank stock, fair value
Loans, net, fair value	0	0
Accrued interest receivable, fair value	0	0
Financial liabilities:
Deposits, fair value	132,557	139,526
Other borrowed funds, fair value	0	0
Subordinated debentures, fair value	0	0
Accrued interest payable, fair value	3	2
Fair Value, Inputs, Level 2 [Member]
Financial Assets:
Cash and cash equivalents, fair value	0	0
Securities available for sale, carrying value	88,850	94,965
Securities available for sale, fair value	88,850	94,965
Securities held to maturity, fair value	13,294	11,569
Federal Home Loan Bank and Federal Reserve Bank stock, fair value
Loans, net, fair value	0	0
Accrued interest receivable, fair value	393	283
Financial liabilities:
Deposits, fair value	496,462	517,680
Other borrowed funds, fair value	17,886	14,536
Subordinated debentures, fair value	4,888	10,146
Accrued interest payable, fair value	858	1,375
Fair Value, Inputs, Level 3 [Member]
Financial Assets:
Cash and cash equivalents, fair value	0	0
Securities available for sale, carrying value	0	0
Securities available for sale, fair value	0	0
Securities held to maturity, fair value	10,186	13,055
Federal Home Loan Bank and Federal Reserve Bank stock, fair value
Loans, net, fair value	555,574	564,059
Accrued interest receivable, fair value	1,658	1,774
Financial liabilities:
Deposits, fair value	0	0
Other borrowed funds, fair value	0	0
Subordinated debentures, fair value	0	0
Accrued interest payable, fair value	$ 0	$ 0

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Fair value portion of accrued expenses.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Fair value of investments in debt securities classified as held-to-maturity.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date.

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The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

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Fair value portion of other liabilities.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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