Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Net income	$ 5,353	$ 4,438	$ 9,933	$ 8,211
Other comprehensive income (loss):
Defined benefit pension and postretirement plans activity, net of taxes	119	128	238	172
Unrealized gains (losses) on available-for-sale securities, net of taxes		83		8
Foreign currency translation adjustment , net of taxes	754	1,002	(1,672)	687
Comprehensive income	6,226	5,651	8,499	9,078
Landauer, Inc. [Member]
Net income	5,175	4,279	9,576	7,922
Other comprehensive income (loss):
Defined benefit pension and postretirement plans activity, net of taxes	119	128	238	172
Unrealized gains (losses) on available-for-sale securities, net of taxes		83		8
Foreign currency translation adjustment , net of taxes	701	980	(1,686)	663
Comprehensive income	5,995	5,470	8,128	8,765
Non-Controlling Interest [Member]
Net income	178	159	357	289
Other comprehensive income (loss):
Foreign currency translation adjustment , net of taxes	53	22	14	24
Comprehensive income	$ 231	$ 181	$ 371	$ 313