Segments - Revenues and Operating Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Corporate and Other
Revenues	$ 16,751	$ 26,138	$ 49,067	$ 52,843
Operating Income (Loss)	(1,942)	(4,652)	(9,112)	(27,338)
U.S. Markets
Corporate and Other
Revenues	9,569	12,078	31,075	27,503
Operating Income (Loss)	235	(1,686)	(593)	(12,123)
Engineered Systems
Corporate and Other
Revenues	6,408	13,707	17,012	24,527
Operating Income (Loss)	(577)	(1,143)	(3,395)	(9,973)
Distribution Services
Corporate and Other
Revenues	774	353	980	813
Operating Income (Loss)	2	(152)	(157)	(318)
Corporate and Other
Corporate and Other
Revenues	0	0	0	0
Operating Income (Loss)	$ (1,602)	$ (1,671)	$ (4,967)	$ (4,924)