Note 9 - Segment Information (Details Textual) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended
Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Europe and Canada [Member]
Revenue, Net	$ 1,557	$ 2,174		$ 5,405	$ 6,570
Number of Reportable Segments			3
Revenue, Net	$ 10,971	$ 9,671		$ 30,830	$ 28,544

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration