Goodwill (Tables)

12 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The changes to goodwill during the years ended September 30, 2015 and 2014 are summarized as follows:

	Contract
	Research		Optics		Total
Goodwill at September 30, 2013	$	4,939,000	$	1,302,000	$	6,241,000
Currency translation on Hilger Crystals				6,000		6,000
Goodwill at September 30, 2014	$	4,939,000	$	1,308,000	$	6,247,000
Currency translation on Hilger Crystals				(116,000)		(116,000)
Goodwill at September 30, 2015	$	4,939,000	$	1,192,000	$	6,131,000