Commitments and Contingencies Lease Commitments (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense	$ 1,558	$ 1,500	$ 1,800
Operating Leases, Future Minimum Payments Due, Next Twelve Months	1,515
Operating Leases, Future Minimum Payments, Due in Two Years	1,543
Operating Leases, Future Minimum Payments, Due in Three Years	1,130
Operating Leases, Future Minimum Payments, Due in Four Years	1,032
Operating Leases, Future Minimum Payments, Due Thereafter	3,364
Operating Leases, Future Minimum Payments Due	10,142
Operating Leases, Income Statement, Sublease Revenue	0
Operating Leases, Future Minimum Payments, Next Rolling Twelve Months		$ 1,558
Operating Leases, Future Minimum Payments, Due in Rolling Year Five	$ 10,142