Note 2 - Investments - Investments Carried at Cost (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Federal Home Loan Bank Stock, Fair Value	$ 2,213	$ 1,886
Federal Reserve Bank Stock, Carrying Cost	1,955	1,955
Federal Home Loan Bank Stock, Carrying Cost	2,213	1,886
Investments, Fair Value	4,294	3,972
Investments, Carrying Cost	4,281	3,957
Collateralized Mortgage Backed Securities [Member]
Mortgage-backed investment, Carrying Cost	113	116
Mortgage-backed investment, Fair Value	$ 126	$ 131

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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-Publisher FASB
-Name Accounting Standards Codification
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Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank. 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 portion of investments in Federal Home Loan Bank (FHLBank) stock.

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Sum of the carrying amounts as of the balance sheet date of all investments.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as held-to-maturity.

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