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Stockholders' Equity (Details Textual) $ / shares in Units, $ in Thousands |  |  |  | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
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May 31, 2016 USD ($) $ / shares shares | Oct. 29, 2014 $ / shares shares | Oct. 05, 2011 shares | Feb. 29, 2016 USD ($) | Nov. 30, 2015 USD ($) | Aug. 31, 2015 USD ($) | May 31, 2015 USD ($) $ / shares shares | Feb. 28, 2015 USD ($) | Nov. 30, 2014 USD ($) | Aug. 31, 2014 USD ($) | Nov. 30, 2015 USD ($) | Nov. 30, 2014 USD ($) | Feb. 29, 2016 USD ($) | Feb. 28, 2015 USD ($) | May 31, 2016 USD ($) installment working_hour Employees $ / shares shares | May 31, 2015 USD ($) $ / shares shares | May 31, 2014 USD ($) $ / shares shares | May 31, 2013 USD ($) | May 31, 2012 USD ($)
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Authorized capital stock |  | 80,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of common stock (shares) | 75,000,000 | 75,000,000 |  |  |  |  | 75,000,000 |  |  |  |  |  |  |  | 75,000,000 | 75,000,000 |  |  |
Common stock, par value (usd per share) | $ / shares | $ 0.01 | $ 0.01 |  |  |  |  | $ 0.01 |  |  |  |  |  |  |  | $ 0.01 | $ 0.01 |  |  |
Preferred stock, shares authorized (shares) | 5,000,000 | 5,000,000 |  |  |  |  | 5,000,000 |  |  |  |  |  |  |  | 5,000,000 | 5,000,000 |  |  |
Preferred stock, par value (usd per share) | $ / shares | $ 0.01 | $ 0.01 |  |  |  |  | $ 0.01 |  |  |  |  |  |  |  | $ 0.01 | $ 0.01 |  |  |
Common stock, votes per share |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of grants to employees vesting |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25.00% |  |  |  |
Option grants to employees vesting period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 years |  |  |  |
Percentage of grants for consultants vesting |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |
Option grants to consultants vesting period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 year |  |  |  |
Subsequent grants for directors vesting |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33.33% |  |  |  |
Subsequent grants for directors vesting period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |
Option grants in the period, weighted average grant date fair value (usd per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.16 | $ 4.74 | $ 4.10 |  |
Risk free interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.48% | 1.54% | 1.44% |  |
Expected volatility rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 31.00% | 31.00% | 34.00% |  |
Expected term |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 years 9 months 21 days | 4 years 9 months 3 days | 4 years 8 months 25 days |  |
The total intrinsic value of options exercised | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100 | $ 1,600 | $ 1,000 |  |
Compensation not yet recognized | $ | $ 3,300 |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,300 |  |  |  |
Proceeds from stock options exercised | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,300 | 4,300 | 1,300 |  |
Stock based compensation pre tax amount | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100 | $ 500 | $ 100 |  |
Grants in the period, weighted average grant date fair value (usd per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15.21 | $ 14.75 | $ 13.23 |  |
Tax benefit from compensation expense | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 | $ 2,000 | $ 1,800 |  |
Share-based Compensation | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,240 | $ 5,998 | $ 5,502 |  |
Average price of share issued | $ / shares | $ 10.67 |  |  |  |  |  | 11.89 |  |  |  |  |  |  |  | $ 10.67 | $ 11.89 | $ 9.30 |  |
Nonvested compensation, weighted average grant date fair valur (usd per share) | $ / shares | $ 14.62 |  |  |  |  |  | $ 13.73 |  |  |  |  |  |  |  | $ 14.62 | $ 13.73 |  |  |
Nonvested compensation (shares) | 549,777 |  |  |  |  |  | 563,101 |  |  |  |  |  |  |  | 549,777 | 563,101 |  |  |
Income tax expense (benefit) | $ |  |  |  | $ 351 | $ (337) | $ 70 | $ 740 | $ (7,599) | $ 1,304 | $ 812 | $ (267) | $ 2,116 | $ 84 | $ (5,483) | $ 40,337 | $ (4,743) | $ 2,839 | $ (286) | $ (322)
Options awarded (shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 259,917 |  |  |  |
Shares awarded (shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 564,380 |  |  |  |
Performance Share and Restricted Stock Unit Awards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total fair value of restricted stock awards vesting | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,500 | 2,400 | $ 1,800 |  |
Restricted Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of recognition for costs not yet recognized | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Employee service, compensation cost not yet recognized | $ | $ 5,400 |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,400 |  |  |  |
Performance Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Employee service, compensation cost not yet recognized | $ | $ 4,600 |  |  |  |  |  | $ 2,200 |  |  |  |  |  |  |  | $ 4,600 | $ 2,200 |  |  |
Nonvested compensation, weighted average grant date fair valur (usd per share) | $ / shares | $ 18.07 |  |  |  |  |  | $ 19.83 |  |  |  |  |  |  |  | $ 18.07 | $ 19.83 | $ 25.56 |  |
Performance period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |
Nonvested compensation (shares) | 400,000 |  |  |  |  |  | 200,000 |  |  |  |  |  |  |  | 400,000 | 200,000 |  |  |
Weighted average remaining contractual term |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years | 3 years |  |  |
Continuing Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax expense (benefit) | $ |  |  |  |  |  | $ 1,300 |  |  |  | $ 500 |  |  |  |  | $ 800 |  |  |  |
Shareholders' Equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax expense (benefit) | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100 |  |  |
Employee Stock Option |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of recognition for costs not yet recognized |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |
Chief Executive Officer | Performance Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options awarded (shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 250,000 |  |  |  |
Term of award |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |
Chief Executive Officer | Restricted Stock Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options awarded (shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000 |  |  |  |
Award vesting installments (installment) | installment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |
Chief Executive Officer | Employee Stock Option |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares awarded (shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 |  |  |  |
Award vesting installments (installment) | installment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |
Chief Executive Officer | Minimum | Performance Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payouts as a percent of grant amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |
Chief Executive Officer | Maximum | Performance Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payouts as a percent of grant amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20000.00% |  |  |  |
1997 Stock Option Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of common stock available to be issued | 1,497,674 |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,497,674 |  |  |  |
Options exercisable period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |
2004 Stock and Incentive Award Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of common stock available to be issued | 2,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,200,000 |  |  |  |
Options exercisable period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |
Total number of common stock reserved for issuance | 6,750,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,750,000 |  |  |  |
Incentive award plan to increase the minimum number of shares |  |  | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Incentive award plan to increase the maximum number of shares |  |  | 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2004 Stock and Incentive Award Plan | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of common stock available to be issued | 800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 800,000 |  |  |  |
Stock Purchase Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Ownership Interests [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of common stock available to be issued | 1,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000.0 |  |  |  |
Share purchase periods | Employees |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |
Duration of purchase of shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 months |  |  |  |
Employee eligible in participating in offering period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 months |  |  |  |
Maximum number of shares to be offered | 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 |  |  |  |
Working schedule of employee to participate in offering period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 or more hours per week and more than five months in a calendar year |  |  |  |
Number of working hours to be eligible (working hour) | working_hour |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |
Number of working months to be eligible |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 months |  |  |  |
Employees ownership threshold |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |
Percentage of fair market value of a share of common stock on the first day of the offering period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 85.00% |  |  |  |
Percentage of fair market value of a share of common stock on the last day of the offering period |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 85.00% |  |  |  |
Number of additional shares reserved for issuance (shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 800,000 |  |  |
Maximum number of shares to be offered under the Stock Purchase Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137,957 | 119,001 | 146,275 |  |

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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Unrecognized cost of unvested share-based compensation awards. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested options awarded to employees as compensation. + References No definition available. + Details
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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + 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 (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + 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 (j) -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 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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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. + 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)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + 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 (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + 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 (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + 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 (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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 (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The highest quantity of shares an employee can purchase under the plan per period. + 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 + Details
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- Definition Number of additional shares authorized for issuance under an established share-based compensation plan. + References No definition available. + Details
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- Definition 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 + Details
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- Definition 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. + 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 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average of per share prices paid for shares purchased on the open market for issuance to employees under the plan. + 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 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 + Details
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- Definition Percentage of vesting of share-based compensation awards. + 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)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + 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 (f)(2)(i) -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 S99 -Paragraph 1 -Subparagraph (SAB Topic 14.D.2) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
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