Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 27,647	$ 32,007
Long-lived assets	2,749	3,142
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	2,391	2,800
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	303	235
Other Asia-Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	2	8
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	53	99
Reportable Geographical Components [Member] | United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	18,159	20,014
Reportable Geographical Components [Member] | Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	1,648	4,779
Reportable Geographical Components [Member] | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	19,807	24,793
Reportable Geographical Components [Member] | Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	4,642	3,754
Reportable Geographical Components [Member] | Other Asia-Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	86	67
Reportable Geographical Components [Member] | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	4,728	3,821
Reportable Geographical Components [Member] | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	2,647	3,393
Reportable Geographical Components [Member] | South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 465	$ 0