Business Segment Information (Geographic Data) (Details) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
|
Dec. 31, 2015
USD ($)
|
Dec. 31, 2014
USD ($)
|
Dec. 31, 2015
USD ($)
geographic_area
|
Dec. 31, 2014
USD ($)
|
Mar. 31, 2015
USD ($)
|
|
| Geographic Data | |||||
| Number of geographic areas the Company operates in | geographic_area | 2 | ||||
| Operating revenues | $ 55,144 | $ 60,145 | $ 173,184 | $ 184,955 | |
| Assets | 423,529 | 423,529 | $ 466,025 | ||
| United States of America | |||||
| Geographic Data | |||||
| Operating revenues | 53,876 | 57,698 | 168,780 | 176,715 | |
| Assets | 416,725 | 416,725 | 458,197 | ||
| Europe | |||||
| Geographic Data | |||||
| Operating revenues | 1,268 | $ 2,447 | 4,404 | $ 8,240 | |
| Assets | $ 6,804 | $ 6,804 | $ 7,828 | ||