Note 2 - Segment Information - Summary of Financial Results for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018		Sep. 30, 2017
Sales	$ 51,901	[1]	$ 51,818	[2]
Operating Income (Loss)	768		449
North American Segment [Member]
Sales	30,200	[1]	29,718	[2]
Operating Income (Loss)	230		1,349
International [Member]
Sales	21,701	[1]	22,100	[2]
Operating Income (Loss)	2,094		757
Unallocated [Member]
Sales		[1]		[2]
Operating Income (Loss)	$ (1,556)		$ (1,657)

[1] Excludes $1,134 of North American segment intercompany sales to the International segment, and $3,320 of International segment intercompany sales to the North American segment.

[2] Excludes $1,696 of North American segment intercompany sales to the International segment, and $3,390 of International segment intercompany sales to the North American segment.