Inventories (Details) (USD $)	Mar. 31, 2014	Jun. 30, 2013
Inventory [Line Items]
Raw materials and sub-assemblies	$ 18,460,000	$ 15,268,000
Work-in-process	3,055,000	2,495,000
Inventory, Gross	21,515,000	17,763,000
Less - Reserve for inventory valuation	(1,077,000)	(626,000)
Inventory, Net	$ 20,438,000	$ 17,137,000