Quantum Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Notes Tables
Notes Details

STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION (Schedule of Stock Option Activity) (Details)

v2.4.0.8

STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION (Schedule of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Sep. 30, 2013
Options
Outstanding as of March 31, 2013	16,050
Exercised	(345)
Forfeited	(1,010)
Expired	(2,859)
Outstanding as of September 30, 2013	11,836
Vested and expected to vest at September 30, 2013	11,798
Exercisable as of September 30, 2013	11,279
Weighted-Average Exercise Price
Outstanding as of March 31, 2013	$ 2.14
Exercised	$ 1.01
Forfeited	$ 2.14
Expired	$ 2.06
Outstanding as of September 30, 2013	$ 2.19
Vested and expected to vest at September 30, 2013	$ 2.19
Exercisable as of September 30, 2013	$ 2.18
Weighted-Average Remaining Contractual Term
Outstanding as of September 30, 2013	1 year 10 months 21 days
Vested and expected to vest at September 30, 2013	1 year 10 months 17 days
Exercisable as of September 30, 2013	1 year 9 months 4 days
Aggregate Intrinsic Value
Outstanding as of September 30, 2013	$ 1,953
Vested and expected to vest at September 30, 2013	1,952
Exercisable as of September 30, 2013	$ 1,937

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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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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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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-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 price of fully vested and expected to vest options that are exercisable.

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The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date.

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Amount by which the current fair value of the underlying stock exceeds the exercise price 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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Number of share options (or share units) exercised during the current period.

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