Note 17 Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
Capital Leases, Future Minimum Payments Due [Abstract]
Capital Leases, Future Minimum Payments Due, Current	$ 2,640
Capital Leases, Future Minimum Payments Due in Two Years	2,374
Capital Leases, Future Minimum Payments Due in Three Years	681
Capital Leases, Future Minimum Payments Due in Four Years	0
Capital Leases, Future Minimum Payments Due in Five Years	0
Capital Leases, Future Minimum Payments Due Thereafter	0
Capital Leases, Future Minimum Payments Due	5,695
Capital Leases, Future Minimum Payments, Interest Included in Payments	263
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments	5,432
Capital Lease Obligations, Current	2,458	2,873
Capitalized Lease Obligations, Net of Current Portion	2,974	5,651
Operating Leases, Future Minimum Payments Due [Abstract]
Operating Leases, Future Minimum Payments Due, Current	1,310
Operating Leases, Future Minimum Payments, Due in Two Years	1,117
Operating Leases, Future Minimum Payments, Due in Three Years	776
Operating Leases, Future Minimum Payments, Due in Four Years	673
Operating Leases, Future Minimum Payments, Due in Five Years	593
Operating Leases, Future Minimum Payments, Due Thereafter	2,284
Operating Leases, Future Minimum Payments Due	6,753
Purchase Obligations, Future Minimum Payments Due [Abstract]
Purchase Obligations, Future Minimum Payments Due, Current	16,654
Purchase Obligations, Future Minimum Payments, Due in Two Years	6,084
Purchase Obligations, Future Minimum Payments, Due in Three Years	4,500
Purchase Obligations, Future Minimum Payments, Due in Four Years	0
Purchase Obligations, Future Minimum Payments, Due in Five Years	0
Purchase Obligations, Future Minimum Payments, Due Thereafter	0
Purchase Obligations, Future Minimum Payments Due	$ 27,238