Note 7 Goodwill and Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

		March 31,
		2014		2013
Goodwill		$	13,192	$	13,192
Accumulated impairment losses			(13,192)		(13,192)
	Net goodwill at beginning of period		-		-
Goodwill acquired in acquisition			25,164		-
	Net goodwill at end of period	$	25,164	$	-

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

	Identifiable Intangible Assets
		Identified intangible assets consisted of the following as of March 31, 2014 (in thousands):
			Gross Intangible Assets		Accumulated Amortization			Net Intangible Assets
Developed intellectual property			$	16,304	$	4,984	$	11,320
Customer relationships				13,020		8,695		4,325
Contract backlog				7,155		7,155		-
Other intangible assets				1,608		906		702
Total identifiable intangible assets			$	38,087	$	21,740	$	16,347
		Identified intangible assets consisted of the following as of March 31, 2013 (in thousands):
			Gross Intangible Assets		Accumulated Amortization			Net Intangible Assets
Developed intellectual property			$	4,800	$	2,458	$	2,342
Customer relationships				6,100		6,100		-
Contract backlog				2,000		2,000		-
Other intangible assets				1,187		636		551
Total identifiable intangible assets			$	14,087	$	11,194	$	2,893

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

			Acquisition Date			Estimated
			Fair Value		Amortization	Useful Life
			(In thousands)		Method	(In months)
Acquired MCU Business
	Developed intellectual property		$	11,504	Straight-line	60
	Customer relationships			6,920	Accelerated	36
	Contract backlog			5,155	Straight-line	9
	Trade name			421	Straight-line	60
		Total for Acquired MCU Business	$	24,000
Zilog
	Developed intellectual property		$	4,800	Straight-line	72
	Customer relationships			6,100	Accelerated	37
	Contract backlog			2,000	Straight-line	12
	Trade name			1,100	Straight-line	72
		Total for Zilog	$	14,000