Goodwill and Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of the Company's intangible assets

The following table highlights the Company's intangible assets (amounts in thousands):

	March 31, 2016				March 31, 2015
	Carrying Amount		Accumulated Amortization		Carrying Amount		Accumulated Amortization
Indefinite Lived Intangible Assets:
Trademarks	$	7,207	$	—	$	7,207	$	—
Amortizing Intangibles:
Purchased technology, customer relationships and patents (3 - 18 years)	43,089		16,995		40,489		14,414
	$	50,296	$	16,995	$	47,696	$	14,414

Summary of changes in carrying amount of goodwill

The changes in the carrying amount of goodwill for the years ended March 31, 2016 and 2015 are as follows (amounts in thousands):    

	Fiscal Year 2016							Fiscal Year 2015
	Solid Capacitors		Film and Electrolytic			Corporate (1)		Solid Capacitors		Film and Electrolytic
Gross balance at beginning of fiscal year
Goodwill	$	35,584	$	1,092		$	—	$	35,584	$	1,092
Accumulated impairment losses	—		(1,092		)	—		—		(1,092		)
Net balance at the end of the year	$	35,584	$	—		$	—	$	35,584	$	—
Acquisitions	$	—	$	—		$	4,710	$	—	$	—
Impairment charges	$	—	$	—		$	—	$	—	$	—
Balance at the end of the year
Goodwill	$	35,584	$	1,092		$	4,710	$	35,584	$	1,092
Accumulated impairment losses	—		(1,092		)	—		—		(1,092		)
Balance at the end of the year, net	$	35,584	$	—		$	4,710	$	35,584	$	—