Note 13 - Parent Company Financial Statements - Condensed Statements of Income and Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Income before income taxes and equity in undistributed net income of subsidiary	$ 3,635	$ 2,426
us-gaap_IncomeTaxExpenseBenefit	641	279
Net income	2,994	2,147
Comprehensive income	1,050	3,637
Parent Company [Member]
Cash dividends from Bank subsidiary	1,065	1,425
Other income	51	46
Other expense	213	206
Income before income taxes and equity in undistributed net income of subsidiary	903	1,265
us-gaap_IncomeTaxExpenseBenefit	(53)	(50)
Income before equity in undistributed net income of Bank subsidiary	956	1,315
Equity in undistributed net income of subsidiary	2,038	832
Net income	2,994	2,147
Comprehensive income	$ 1,050	$ 3,637