Commitments and Contingencies (Future Minimum Rental Payments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015
Operating Leased Assets [Line Items]
2016 (Remaining nine months ending March 31, 2016)	$ 1,540
2017	1,938
2018	1,871
2019	1,864
2020	1,695
Thereafter	770
Total future minimum payments due	9,678		$ 9,957
Future minimum sublease rentals	1,300
Less: Sublease rentals	(1,342)		(1,401)
Minimum lease payments, less minimum sublease rentals	8,336		$ 8,556
Rent expense	400	$ 400
Facilities
Operating Leased Assets [Line Items]
2016 (Remaining nine months ending March 31, 2016)	1,312
2017	1,861
2018	1,871
2019	1,864
2020	1,695
Thereafter	770
Total future minimum payments due	9,373
Equipment
Operating Leased Assets [Line Items]
2016 (Remaining nine months ending March 31, 2016)	228
2017	77
2018	0
2019	0
2020	0
Thereafter	0
Total future minimum payments due	$ 305