Note 8 Goodwill and Intangible Assets (Finite-Lived Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 62,736	$ 14,087
Accumulated Amortization	11,463	11,194
Net Intangible Assets	51,273	2,893
Developed Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	19,056	4,800
Accumulated Amortization	2,658	2,458
Net Intangible Assets	16,398	2,342
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	20,803	6,100
Accumulated Amortization	6,100	6,100
Net Intangible Assets	14,703	0
In Progress Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	13,090	0
Accumulated Amortization	0	0
Net Intangible Assets	13,090	0
Contract Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	7,250	2,000
Accumulated Amortization	2,000	2,000
Net Intangible Assets	5,250	0
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	2,537	1,187
Accumulated Amortization	705	636
Net Intangible Assets	$ 1,832	$ 551