Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Consolidated Balance Sheets [Abstract]
Receivables, allowances	$ 1,872	$ 1,266
Intangible assets, accumulated amortization	37,579	13,754
Dosimetry devices, accumulated depreciation	$ 4,353	$ 4,739
Preferred stock, par value	$ 0.10	$ 0.10
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	9,577,874	9,575,926
Common stock, shares outstanding	9,577,874	9,575,926