Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Net income	$ 4,438	$ 3,681	$ 8,211	$ 8,206
Other comprehensive income:
Defined benefit pension and postretirement plans activity, net of taxes	128	19	172	91
Unrealized gains (losses) on available-for-sale securities, net of taxes	83	37	8	2
Foreign currency translation adjustment , net of taxes	1,002	(2,026)	687	(3,896)
Comprehensive income	5,651	1,711	9,078	4,403
Landauer, Inc. [Member]
Net income	4,279	3,547	7,922	7,924
Other comprehensive income:
Defined benefit pension and postretirement plans activity, net of taxes	128	19	172	91
Unrealized gains (losses) on available-for-sale securities, net of taxes	83	37	8	2
Foreign currency translation adjustment , net of taxes	980	(1,927)	663	(3,698)
Comprehensive income	5,470	1,676	8,765	4,319
Non-Controlling Interest [Member]
Net income	159	134	289	282
Other comprehensive income:
Foreign currency translation adjustment , net of taxes	22	(99)	24	(198)
Comprehensive income	$ 181	$ 35	$ 313	$ 84