Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Statement of Cash Flows [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (38,456)	$ 5,704
Operating Activities:
Gain on sale of discontinued operations	0	(5,644)
Net cash provided by (used in) operating activities of discontinued operations	0	(679)
Depreciation and amortization	28,856	30,694
Equity income (loss) from NEC TOKIN	(4,758)	(76)
Non-cash debt and financing costs	649	1,570
Gains (Losses) on Extinguishment of Debt		(1,003)
Stock-based compensation expense	3,761	3,184
Long-term receivable write down	24	27
Change in value of NEC TOKIN options	26,300	(13,200)
Net (gain) loss on sales and disposals of assets	(233)	(759)
Pension and other post-retirement benefits	652	87
Change in deferred income taxes	735	1,276
Change in operating assets	4,762	(208)
Change in operating liabilities	(32,891)	(24,732)
Other	526	337
Net cash provided by (used in) operating activities	(557)	(3,270)
Investing activities:
Capital expenditures	14,120	17,474
Payments to Acquire Investments	(2,892)	0
Proceeds from sale of assets	898	4,540
Change in restricted cash	0	11,509
Proceeds from sale of discontinued operations	0	9,564
Net cash provided by (used in) investing activities	(16,114)	8,139
Financing activities:
Proceeds from revolving line of credit	10,000	42,340
Payments of revolving line of credit	(5,500)	(14,342)
Deferred acquisition payments	0	(11,899)
Payments on long-term debt	(481)	(21,733)
Payments for Repurchase of Other Equity	(691)	0
Proceeds from exercise of stock options	0	24
Net cash provided by (used in) financing activities	3,328	(5,610)
Net increase (decrease) in cash and cash equivalents	13,343	741
Effect of foreign currency fluctuations on cash	139	(1,606)
Cash and cash equivalents at beginning of fiscal period	56,362	57,929
Cash and cash equivalents at end of fiscal period	$ 43,158	$ 55,582