Restructuring Charges (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Restructuring Reserve [Roll Forward]
Liability, beginning balance	$ 187	$ 307	$ 548		$ 548
Restructuring charges	38	999	93	6,218	1,130	6,218
Non-cash items		(272)
Cash payments	(225)	(847)	(334)
Liability, ending balance	0	187	307		0
Workforce Reduction
Restructuring Reserve [Roll Forward]
Liability, beginning balance	187	307	548		548
Restructuring charges	38	727	93
Non-cash items		0
Cash payments	(225)	(847)	(334)
Liability, ending balance	0	187	307		0
Asset Impairment
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0	0	0		0
Restructuring charges	0	272	0
Non-cash items		(272)
Cash payments	0	0	0
Liability, ending balance	$ 0	$ 0	$ 0		$ 0