Segments - Revenues and Operating Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Corporate and Other
Revenues	$ 15,634	$ 16,587
Operating Income (Loss)	(3,251)	(3,605)
U.S. Markets
Corporate and Other
Revenues	5,901	11,633
Operating Income (Loss)	(57)	38
Engineered Systems
Corporate and Other
Revenues	6,800	4,830
Operating Income (Loss)	(769)	(1,666)
Distribution Services
Corporate and Other
Revenues	2,933	124
Operating Income (Loss)	(728)	(65)
Corporate and Other
Corporate and Other
Revenues	0	0
Operating Income (Loss)	$ (1,697)	$ (1,912)