Goodwill And Other Intangible Assets Goodwill rollforward (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Dec. 31, 2013	Mar. 31, 2013
Goodwill [Roll Forward]
Beginning balance	$ 4,998	$ 5,101
Acquisition of iTVX	1,888
Currency translation	138	(103)
Ending balance	7,024	4,998
AMI [Member]
Goodwill [Roll Forward]
Beginning balance	4,467	4,570
Acquisition of iTVX	1,888
Currency translation	138	(103)
Ending balance	6,493	4,467
HE [Member]
Goodwill [Roll Forward]
Beginning balance	531	531
Currency translation	0	0
Ending balance	$ 531	$ 531