Goodwill (Details) - USD ($)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 6,131,000	$ 6,247,000
Currency translation on Hilger Crystals	(233,000)	(116,000)
Goodwill, Ending Balance	5,898,000	6,131,000
Contract Research [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	4,939,000	4,939,000
Currency translation on Hilger Crystals	0	0
Goodwill, Ending Balance	4,939,000	4,939,000
Optics [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,192,000	1,308,000
Currency translation on Hilger Crystals	(233,000)	(116,000)
Goodwill, Ending Balance	$ 959,000	$ 1,192,000