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Fair Value Measurements (Details) (USD $)	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Forward Foreign Currency Exchange Contracts [Member]	Jun. 30, 2012 Forward Foreign Currency Exchange Contracts [Member]	Jun. 30, 2013 Warrant Liability [Member]	Jun. 30, 2012 Warrant Liability [Member]	Jun. 30, 2013 Cerberus Warrant [Member]	Jun. 30, 2013 Supplier Warrant [Member]	Jun. 30, 2013 Recurring [Member]	Mar. 31, 2013 Recurring [Member]	Jun. 30, 2013 Recurring [Member] Level 1 [Member]	Mar. 31, 2013 Recurring [Member] Level 1 [Member]	Jun. 30, 2013 Recurring [Member] Level 2 [Member]	Mar. 31, 2013 Recurring [Member] Level 2 [Member]	Jun. 30, 2013 Recurring [Member] Level 3 [Member]	Mar. 31, 2013 Recurring [Member] Level 3 [Member]
Short-term Investments [Abstract]
Mutual funds									$ 422,000	$ 411,000	$ 422,000	$ 411,000	$ 0	$ 0	$ 0	$ 0
Prepaid expenses and other current assets [Abstract]
Forward foreign currency exchange contracts									0	683,000	0	0	0	683,000	0	0
Other current liabilities [Abstract]
Deferred compensation									422,000	411,000	422,000	411,000	0	0	0	0
Forward foreign currency exchange contracts									50,000	0	0	0	50,000	0	0	0
Other liabilities [Abstract]
Warrant liability									3,584,000	2,014,000	0	0	0	0	3,584,000	2,014,000
Net gain (loss) on forward foreign currency exchange contracts			(733,000)	(91,000)
Fair value assumptions of warrants [Abstract]
Risk free interest rate (in hundredths)							1.00%	1.13%
Expected life							3 years 10 months 24 days	4 years 3 months
Expected volatility (in hundredths)							43.05%	43.31%
Dividend yield (in hundredths)							0.00%	0.00%
Probability of future financing (in hundredths)							0.00%	0.00%
Change in warrant liability measured at fair value recurring basis using significant unobservable inputs (Level 3) [Rollforward]
Beginning balance	2,014,000	0
Newly issued	0	607,000
Total (gain) loss included in net loss (gain)	1,570,000	10,000			1,570,000	10,000
Warrants exercised	0	0
Net transfers in (out) of Level 3	0	0
Ending balance	$ 3,584,000	$ 617,000

X

- Definition

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.

+ References

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Percentage of likelihood of future financing, used as an input to measure fair value.

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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 warrant liability as of the balance sheet date.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of transfers of financial instrument classified as a liability into (out of) level 3 of the fair value hierarchy.

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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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