Stock-Based Compensation Stock Option Awards (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Weighted Average Remaining Contractual Term, Outstanding at (in years)	3 years 8 months 5 days
Exercised, Total Intrinsic Value	$ 0	$ 0	$ 22,000
Compensation expense	4,520,000	2,618,000	4,609,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	4 years
Stock option life (in years)	10 years		6 years 6 months
Options, grants in period (in shares)	3,350	0	2,835
Grant Price (usd per share)	$ 3.45		$ 3.97
Exercise Price (usd per share)	$ 6.00		$ 6.00
Annualized Volatility	60.90%		59.20%
Annual Dividend Rate	0.00%		0.00%
Risk Free Rate	1.25%		2.48%
Fair Value	5,243,000		5,540,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at (in shares)	4,191	4,524	2,157
Granted (in shares)	3,350	0	2,835
Exercised (in shares)			(35)
Forfeited (in shares)	(412)	(203)	(433)
Expired (in shares)	(119)	(130)
Outstanding at (in shares)	7,010	4,191	4,524
Vested and expected to vest at March 31, 2012 (in shares)	6,786
Exercisable at March 31, 2012 (in shares)	2,119
Weighted Average Exercise Price, Outstanding at (usd per share)	$ 6.03	$ 6.05	$ 6.24
Exercised, Weighted Average Exercise Price (usd per share)			$ 2.98
Forfeited, Weighted Average Exercise Price (usd per share)	$ 5.38	$ 5.98	$ 6.91
Expired, Weighted Average Exercise Price (usd per share)	$ 6.26	$ 6.86
Granted, Weighted Average Exercise Price (usd per share)	$ 6.00		$ 6.00
Weighted Average Exercise Price, Outstanding at (usd per share)	$ 6.05	$ 6.03	$ 6.05
Vested and expected to vest at March 31, 2012, Weighted Average Exercise Price (usd per share)	$ 6.05
Exercisable at March 31 2012, Weighted Average Exercise Price (usd per share)	$ 6.16
Weighted Average Remaining Contractual Term, Outstanding at (in years)	7 years 10 months 13 days
Vested and expected to vest at March 31, 2012, Weighted Average Remaining Contractual Term (in years)	7 years 10 months 6 days
Exercisable at March 31, 2012, Weighted Average Remaining Contractual Term (in years)	6 years 4 days
Outstanding at, Intrinsic Value	1
Vested and expected to vest at March 31, 2012, Outstanding, Aggregate Intrinsic Value	1
Exercisable at March 31, 2012, Intrinsic Value	1
Compensation expense	$ 3,203,000	$ 907,000	$ 2,874,000
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	2 years
Minimum [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option life (in years)	6 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
Maximum [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option life (in years)	6 years 6 months

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Exercise Price

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Fair Value

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Price

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Net number of share options (or share units) granted during the period.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise prices of fully vested and expected to vest options outstanding.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

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Number of share options (or share units) exercised during the current period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Section S99

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