Note 2 - Summary of Significant Accounting Policies - New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2018
Accounts receivable, net	$ 58,442	$ 54,728	$ 55,544	$ 50,609
Inventories, net	43,078	43,512	46,827	50,994
Other long-term assets, net	23,127	15,124	9,609	9,786
Retained earnings	$ (3,080)	$ (5,808)	15,715	$ 15,124
Restatement Adjustment [Member]
Accounts receivable, net			4,935
Inventories, net			(4,167)
Other long-term assets, net			(177)
Retained earnings			$ 591