v3.2.0.727
Business Segment Information (Geographic Data) (Details)
$ in Thousands
3 Months Ended
Jun. 30, 2015
USD ($)
geographic_area
Jun. 30, 2014
USD ($)
Mar. 31, 2015
USD ($)
Geographic Data      
Number of geographic areas the Company operates in | geographic_area 2    
Operating revenues $ 56,108 $ 63,338  
Assets 456,159   $ 466,025
United States of America      
Geographic Data      
Operating revenues 54,521 60,307  
Assets 448,748   458,197
Europe      
Geographic Data      
Operating revenues 1,587 $ 3,031  
Assets $ 7,411   $ 7,828