Note 17 - Financial Information by Segment and Geographic Area (Details Textual) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2016 USD ($)		Jun. 30, 2015 USD ($)		Jun. 30, 2014 USD ($)
North American Segment [Member] | Intersegment Eliminations [Member]
Revenue, Net									$ 8,259		$ 12,276		$ 17,692
North American Segment [Member]
Revenue, Net									130,108		137,085		129,287
International Segment [Member] | Intersegment Eliminations [Member]
Revenue, Net									9,282		9,842		8,585
International Segment [Member]
Revenue, Net									$ 79,577		$ 104,465		117,847
Number of Reportable Segments									2		1
Revenue, Net	$ 54,647	$ 50,329	$ 53,671	$ 51,038	$ 61,441	$ 56,116	$ 63,821	$ 60,172	$ 209,685	[1]	$ 241,550	[2]	$ 247,134	[3]

[1] Excludes $8,259 of North American segment sales to the International segment and $9,282 sales of the International segment to the North American segment.

[2] Excludes $12,276 of North American segment sales to the International segment and $9,842 sales of the International segment to the North American segment.

[3] Excludes $17,692 of North American segment sales to the International segment and $8,585 sales of the International segment to the North American segment.