Date the equity-based award expires, in CCYY-MM-DD format.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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No definition available.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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Share-based Payments (Details) - shares	12 Months Ended
Share-based Payments (Details) - shares	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 28, 2013	Mar. 27, 2013	Feb. 25, 2010	Feb. 24, 2010	Dec. 17, 2003
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option to purchase common stock, outstanding (in shares)	984,066	1,389,254
2003 Long-Term Incentive Plan [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of stock options approved (in shares)								1,200,000
Option to purchase common stock, outstanding (in shares)	89,350	438,750
Options available for grant (in shares)	0	0
Incentive plan, expiration date	Oct. 31, 2013
2004 Non-Employee Director Stock Option Plan [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of stock options approved (in shares)						275,000	175,000
Option to purchase common stock, outstanding (in shares)	154,000	183,000
Options available for grant (in shares)	0	0
2010 Incentive Award Plan [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of stock options approved (in shares)			2,750,000	1,750,000	750,000
Option to purchase common stock, outstanding (in shares)	740,716	767,504
Options available for grant (in shares)	964,039	1,165,740
2010 Incentive Award Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued (in shares)	137,321	170,787
2014 Non-Employee Director Incentive Award Plan [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of stock options approved (in shares)			342,000
Options available for grant (in shares)	308,411	323,885
Number of shares issued (in shares)	0	0
2014 Non-Employee Director Incentive Award Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued (in shares)	16,206	10,656