Fair Value Measurements (Details) (USD $)	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Change in warrant liability measured at fair value recurring basis using significant unobservable inputs (Level 3) [Rollforward]
Newly issued	$ 0	$ 0	$ 1,625,000
Total (gain) loss included in net income (loss)	459,000	10,443,000	389,000
Forward Foreign Currency Exchange Contracts [Member]
Other liabilities [Abstract]
Net loss on forward foreign currency exchange contracts	(1,034,000)	(842,000)
Warrant Liability [Member]
Change in warrant liability measured at fair value recurring basis using significant unobservable inputs (Level 3) [Rollforward]
Beginning balance	10,047,000	2,014,000
Newly issued	0	0
Total (gain) loss included in net income (loss)	459,000	10,443,000
Exercises/settlements	0	(2,410,000)
Net transfers in (out) of Level 3	0	0
Ending balance	10,506,000	10,047,000
Supplier Warrant [Member]
Fair value assumptions of warrants [Abstract]
Risk free interest rate (in hundredths)	0.76%
Expected life	2 years 6 months
Expected volatility (in hundredths)	47.00%
Dividend yield (in hundredths)	0.00%
Probability of future financing (in hundredths)	0.00%
Recurring [Member]
Short-Term Investments [Abstract]
Mutual funds	699,000	521,000
Other current liabilities [Abstract]
Deferred compensation	699,000	521,000
Forward foreign currency exchange contracts	1,193,000	159,000
Other liabilities [Abstract]
Warrant liability	10,506,000	10,047,000
Recurring [Member] \| Level 1 [Member]
Short-Term Investments [Abstract]
Mutual funds	699,000	521,000
Other current liabilities [Abstract]
Deferred compensation	699,000	521,000
Forward foreign currency exchange contracts	0	0
Other liabilities [Abstract]
Warrant liability	0	0
Recurring [Member] \| Level 2 [Member]
Short-Term Investments [Abstract]
Mutual funds	0	0
Other current liabilities [Abstract]
Deferred compensation	0	0
Forward foreign currency exchange contracts	1,193,000	159,000
Other liabilities [Abstract]
Warrant liability	0	0
Recurring [Member] \| Level 3 [Member]
Short-Term Investments [Abstract]
Mutual funds	0	0
Other current liabilities [Abstract]
Deferred compensation	0	0
Forward foreign currency exchange contracts	0	0
Other liabilities [Abstract]
Warrant liability	$ 10,506,000	$ 10,047,000

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of deferred compensation liability as of the balance sheet date.

No definition available.