Note 14 - Parent Company Financial Statements - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Net income	$ 3,581	$ 2,994
Securities amortization and accretion, net	963	1,087
Gain on sale of securities	(33)	(209)
Net cash flows from operating activities	5,851	5,379
Proceeds from sales of available-for-sale securities	2,644	7,342
Net cash flows from investing activities	(50,949)	(32,059)
Net cash flows from financing activities	42,958	26,411
Change in cash and cash equivalents	(2,140)	(269)
Cash and cash equivalents, beginning of year	9,912	10,181
Cash and cash equivalents, end of year	7,772	9,912
Parent Company [Member]
Net income	3,581	2,994
Equity in undistributed net income of Bank subsidiary	(2,312)	(2,038)
Securities amortization and accretion, net	(10)	(10)
Gain on sale of securities		(11)
Change in other assets and liabilities	12	6
Net cash flows from operating activities	1,271	941
Proceeds from sales of available-for-sale securities		357
Net cash flows from investing activities		357
Dividend paid	(1,351)	(1,308)
Issuance of treasury stock for stock awards	90
Net cash flows from financing activities	(1,261)	(1,308)
Change in cash and cash equivalents	10	(10)
Cash and cash equivalents, beginning of year	36	46
Cash and cash equivalents, end of year	$ 46	$ 36