Commitments and Contingencies Lease Commitments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense	$ 1,526	$ 1,800	$ 1,700
Operating Leases, Future Minimum Payments Due, Next Twelve Months	1,558
Operating Leases, Future Minimum Payments, Due in Two Years	1,515
Operating Leases, Future Minimum Payments, Due in Three Years	1,543
Operating Leases, Future Minimum Payments, Due in Four Years	1,130
Operating Leases, Future Minimum Payments, Due Thereafter	4,397
Operating Leases, Future Minimum Payments Due	11,669
Operating Leases, Income Statement, Sublease Revenue		24
Operating Leases, Future Minimum Payments, Next Rolling Twelve Months	1,502
Operating Leases, Future Minimum Payments, Due in Rolling Year Five	$ 11,645