Note 2 - Summary of Significant Accounting Policies - New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jul. 01, 2018	Jun. 30, 2018
Accounts receivable, net	$ 52,137	$ 55,544	$ 50,609
Inventories, net	51,621	46,827	50,994
Other long-term assets, net	13,807	9,609	9,786
Retained earnings	$ (5,368)	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