Note 8 Goodwill and Intangible Assets (Tables)

6 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	September 30, 2014						March 31, 2014
	Gross Intangible Assets		Accumulated Amortization		Net Intangible Assets		Gross Intangible Assets		Accumulated Amortization		Net Intangible Assets
	(unaudited)						(unaudited)
Developed intellectual property	$	16,304	$	6,534	$	9,770	$	16,304	$	4,984	$	11,320
Customer relationships		13,020		10,137		2,883		13,020		8,695		4,325
Contract backlog		7,155		7,155		-		7,155		7,155		-
Other intangible assets		1,608		1,040		568		1,608		906		702
Total identifiable intangible assets	$	38,087	$	24,866	$	13,221	$	38,087	$	21,740	$	16,347