Note 3 - Investment Securities - Securities Available-for-sale (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Debt securities, amortized cost	$ 78,909
Debt securities, fair value	78,132	$ 81,068
Equity investments measured at net asset value, amortized cost	6,947	6,866
Equity investments measured at net asset value, gross unrealized gains
Equity investments measured at net asset value, gross unrealized losses	(236)	(247)
Equity investments measured at net asset value, fair value	6,711	6,619
Total investment securities, amortized cost	85,856	89,271
Total investment securities, gross unrealized gains	79
Total investment securities, gross unrealized losses	(1,092)	(1,584)
Total investment securities, fair value	84,843	87,687
US Government Agencies Debt Securities [Member]
Debt securities, amortized cost	57,056	57,129
Debt securities, gross unrealized gains	79
Debt securities, gross unrealized losses	(110)	(242)
Debt securities, fair value	57,025	56,887
Collateralized Mortgage Backed Securities [Member]
Debt securities, amortized cost	21,853	25,276
Debt securities, gross unrealized gains
Debt securities, gross unrealized losses	(746)	(1,095)
Debt securities, fair value	$ 21,107	$ 24,181

Amount, before tax, of accumulated gross unrealized gains related to debt and equity securities.

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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