Note 13 - Parent Company Financial Statements - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Available-for-sale securities, fair value	$ 142,086	$ 133,369
Total assets	457,883	430,390
Shareholders’ equity	43,535	43,793	$ 41,466
Total liabilities & shareholders’ equity	457,883	430,390
Parent Company [Member]
Cash	36	46
Available-for-sale securities, fair value	1,651	2,050
Other assets	61	50
Investment in subsidiary	41,843	41,708
Total assets	43,591	43,854
Other liabilities	56	61
Shareholders’ equity	43,535	43,793
Total liabilities & shareholders’ equity	$ 43,591	$ 43,854