Property and Equipment, net (Details) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Property, Plant and Equipment [Abstract]
Leasehold improvements	$ 2,807,000	$ 2,641,000
Machinery, equipment and customer support spares	18,085,000	17,763,000
Property, plant and equipment, gross	20,892,000	20,404,000
Less: Accumulated depreciation	(17,811,000)	(17,302,000)
Property, plant and equipment, total	3,081,000	3,102,000
Depreciation expense for property, plant and equipment	1,941,000	2,254,000	2,811,000
Net book value	0	0
Asset retirement obligation [Roll Forward]
Asset retirement obligation, June 30, 2013	428,000
Accretion of asset retirement obligation	1,000
Payment of restoration costs	(6,000)
Impact of foreign exchange rates	(10,000)
Asset retirement obligation, June 30, 2014	$ 413,000	$ 428,000