Leases (Details Textual) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating Leases, Rent Expense	$ 1,281,164	$ 1,306,593
Description of Lessor Leasing Arrangements, Operating Leases	The Company has non-cancelable operating lease agreements, primarily for property, that expire through 2014
Radiation Monitoring Devices [Member]
Operating Leases, Rent Expense	$ 58,935
Description of Lessor Leasing Arrangements, Operating Leases	One of the Company''s facilities is leased from a company controlled by the former owner of RMD, who is also a former director of the Company and the former President of the RMD subsidiary. This lease expires in June 2013.
Optometrics Holdings [Member]
Description of Lessor Leasing Arrangements, Operating Leases	One of the Company''s facilities is leased from a company controlled by the former owners of Optometrics, one of whom is also currently the Optometrics'' Chief Operating Officer. This lease expires in March 2013.