Note 11 - Segment Information - Summary of Financial Results for Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2017		Dec. 31, 2016
Sales	$ 52,124	[1]	$ 53,187	[2]	$ 103,942	[3]	$ 102,100	[4]
Operating Income (Loss)	444		1,829		893		(21)
North American Segment [Member]
Sales	31,100	[1]	32,151	[2]	60,818	[3]	60,554	[4]
Operating Income (Loss)	1,365		2,805		2,714		2,957
International [Member]
Sales	21,024	[1]	21,036	[2]	43,124	[3]	41,546	[4]
Operating Income (Loss)	243		636		1,000		550
Unallocated [Member]
Sales		[1]		[2]		[3]		[4]
Operating Income (Loss)	$ (1,164)		$ (1,612)		$ (2,821)		$ (3,528)

[1] Excludes $3,277 of North American segment intercompany sales to the International segment, and $ 6,688 of International segment intercompany sales to the North American segment.

[2] Excludes $4,696 of North American segment intercompany sales to the International segment, and $6,049 of International segment intercompany sales to the North American segment.

[3] Excludes $3,277 of North American segment intercompany sales to the International segment, and $ 6,688 of International segment intercompany sales to the North American segment.

[4] Excludes $4,696 of North American segment intercompany sales to the International segment, and $6,049 of International segment intercompany sales to the North American segment.