Note 6 - Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Accumulated other comprehensive income (loss), before tax	$ (2,069)	$ 675
Accumulated other comprehensive income (loss), tax	434	(230)
Accumulated other comprehensive income (loss), net	(1,635)	445
Unrealized holding gain on available-for-sale securities arising during the period, before tax	(893)	104
Unrealized holding loss on available-for-sale securities arising during the period, tax	188	(35)
Unrealized holding gain on available-for-sale securities arising during the period, net	(705)	69
Amounts reclassified from accumulated other comprehensive income, before tax	(587)	(38)	[1],[2]
Amounts reclassified from accumulated other comprehensive income, tax	124	13	[1],[2]
Amounts reclassified from accumulated other comprehensive income, net	(463)	(25)	[1],[2]
Net current period other comprehensive income (loss), before tax	(1,480)	66
Net current period other comprehensive loss, tax	312	(22)
Other comprehensive income (loss)	(1,168)	44
Accumulated other comprehensive income (loss), before tax	(3,549)	741
Accumulated other comprehensive income (loss), tax	746	(252)
Accumulated other comprehensive income (loss), net	$ (2,803)	$ 489

[1] Income tax expense

[2] Securities (gains) losses, net