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Contract Services and Advanced Technology Costs (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 31, 2016
Sep. 30, 2015
Research and Development [Abstract]    
UT-Battelle contract monthly revenue $ 2.7  
ACTDO contract monthly revenue   $ 6.9
UT-Battelle contract revenue current work 8.1  
UT-Battelle contract revenue past work $ 8.1