Note 7 - Fair Value Measurements (Details) - Carrying Value and Estimated Fair Value of Financial Instruments (USD $)	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014
Financial assets:
Interest-bearing time deposits	$ 894,000us-gaap_InterestBearingDepositsInBanks	$ 865,000us-gaap_InterestBearingDepositsInBanks
Securities available for sale	99,441,000us-gaap_AvailableForSaleSecurities	100,226,000us-gaap_AvailableForSaleSecurities
Securities held to maturity	6,000	6,000
Cost method investment			711,000us-gaap_CostMethodInvestments
Fair Value, Inputs, Level 1 [Member]
Financial assets:
Cash and cash equivalents	38,570,000	33,243,000
Interest-bearing time deposits	0	0
Securities available for sale	95,000	2,083,000
Securities held to maturity	0	0
Loans held for sale	0	0
Loans, net	0	0
FHLB stock	0	0
Accrued interest receivable	0	0
Cost method investment	0	0
Financial liabilities:
Deposits	0	0
Accrued interest payable	0	0
Fair Value, Inputs, Level 2 [Member]
Financial assets:
Cash and cash equivalents	0	0
Interest-bearing time deposits	9,124,000	8,370,000
Securities available for sale	99,346,000	98,143,000
Securities held to maturity	6,000	6,000
Loans held for sale	168,000	1,641,000
Loans, net	0	0
FHLB stock	2,241,000	2,241,000
Accrued interest receivable	1,571,000	1,580,000
Cost method investment	711,000	711,000
Financial liabilities:
Deposits	0	0
Accrued interest payable	124,000	127,000
Fair Value, Inputs, Level 3 [Member]
Financial assets:
Cash and cash equivalents	0	0
Interest-bearing time deposits	0	0
Securities available for sale	0	0
Securities held to maturity	0	0
Loans held for sale	0	0
Loans, net	299,232,000	301,864,000
FHLB stock	0	0
Accrued interest receivable	0	0
Cost method investment	0	0
Financial liabilities:
Deposits	410,909,000	412,282,000
Accrued interest payable	0	0
Reported Value Measurement [Member]
Financial assets:
Cash and cash equivalents	38,570,000	33,243,000
Interest-bearing time deposits	9,015,000	8,270,000
Securities available for sale	99,441,000	100,226,000
Securities held to maturity	6,000	6,000
Loans held for sale	165,000	1,608,000
Loans, net	297,039,000	300,603,000
FHLB stock	2,241,000	2,241,000
Accrued interest receivable	1,571,000	1,580,000
Cost method investment	711,000	711,000
Financial liabilities:
Deposits	411,230,000	412,636,000
Accrued interest payable	124,000	127,000
Estimate of Fair Value Measurement [Member]
Financial assets:
Cash and cash equivalents	38,570,000	33,243,000
Interest-bearing time deposits	9,124,000	8,370,000
Securities available for sale	99,441,000	100,226,000
Securities held to maturity	6,000	6,000
Loans held for sale	168,000	1,641,000
Loans, net	299,232,000	301,864,000
FHLB stock	2,241,000	2,241,000
Accrued interest receivable	1,571,000	1,580,000
Cost method investment	711,000	711,000
Financial liabilities:
Deposits	410,909,000	412,282,000
Accrued interest payable	$ 124,000	$ 127,000

Represents accrued interest receivable fair value disclosure.

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Represents interest payable fair value disclosure.

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

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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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Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

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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 investments in debt securities classified as held-to-maturity.

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For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

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

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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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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