Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 61,149	$ 64,459	$ 71,171
Long-lived assets	5,165	17,666
Reportable Geographical Components [Member] | United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	36,697	34,713	40,993
Long-lived assets	3,247	16,008
Reportable Geographical Components [Member] | Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	4,924	7,046	5,746
Reportable Geographical Components [Member] | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	41,621	41,759	46,739
Reportable Geographical Components [Member] | Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	11,270	11,929	11,161
Long-lived assets	1,658	1,248
Reportable Geographical Components [Member] | Other Asia-Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	2,935	2,230	3,193
Long-lived assets	18	23
Reportable Geographical Components [Member] | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	14,205	14,159	14,354
Reportable Geographical Components [Member] | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	5,311	8,532	9,964
Long-lived assets	242	387
Reportable Geographical Components [Member] | South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 12	$ 9	$ 114