Note 11 - Segment Information - Summary of Financial Results for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017		Sep. 30, 2016
Sales	$ 51,818	[1]	$ 48,913	[2]
Operating Income (Loss)	449		(1,850)
North American Segment [Member]
Sales	29,718	[1]	28,403	[2]
Operating Income (Loss)	1,349		152
International [Member]
Sales	22,100	[1]	20,510	[2]
Operating Income (Loss)	757		(86)
Unallocated [Member]
Sales		[1]		[2]
Operating Income (Loss)	$ (1,657)		$ (1,916)

[1] 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.

[2] Excludes $2,357 of North American segment intercompany sales to the International segment, and $3,082 of International segment intercompany sales to the North American segment.