XML 63 R59.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Share-Based Compensation (Details 3) (USD $) | 12 Months Ended
--- | ---
Jan. 03, 2015
Share-based compensation |
Exercise price (in dollars per share) | $ 30.97 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
1998 Plan |
Share-based compensation |
Shares available for grant | 1,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = crai_IncentiveAndNonqualifiedStockOptionPlan1998Member
1998 Plan | Options |
Share-based compensation |
Aggregate options granted (in shares) | 3,839,216 crai_ShareBasedCompensationArrangementByShareBasedPaymentAwardAggregateOptionsGranted / us-gaap_AwardTypeAxis = crai_EmployeeAndDirectorsStockOptionsMember / us-gaap_PlanNameAxis = crai_IncentiveAndNonqualifiedStockOptionPlan1998Member
Shares available for grant | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = crai_EmployeeAndDirectorsStockOptionsMember / us-gaap_PlanNameAxis = crai_IncentiveAndNonqualifiedStockOptionPlan1998Member
1998 Plan | Options | Minimum |
Share-based compensation |
Termination period | 7 years
1998 Plan | Options | Maximum |
Share-based compensation |
Vesting period | 5 years
Termination period | 10 years
2004 Nonqualified Inducement Stock Option Plan | Options |
Share-based compensation |
Aggregate options granted (in shares) | 359,420 crai_ShareBasedCompensationArrangementByShareBasedPaymentAwardAggregateOptionsGranted / us-gaap_AwardTypeAxis = crai_EmployeeAndDirectorsStockOptionsMember / us-gaap_PlanNameAxis = crai_NonqualifiedInducementStockOptionPlan2004Member
Shares available for grant | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = crai_EmployeeAndDirectorsStockOptionsMember / us-gaap_PlanNameAxis = crai_NonqualifiedInducementStockOptionPlan2004Member
2009 Nonqualified Inducement Stock Option Plan |
Share-based compensation |
Shares authorized | 250,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = crai_NonqualifiedInducementStockOptionPlan2009Member
2009 Nonqualified Inducement Stock Option Plan | Options |
Share-based compensation |
Aggregate options granted (in shares) | 200,000 crai_ShareBasedCompensationArrangementByShareBasedPaymentAwardAggregateOptionsGranted / us-gaap_AwardTypeAxis = crai_EmployeeAndDirectorsStockOptionsMember / us-gaap_PlanNameAxis = crai_NonqualifiedInducementStockOptionPlan2009Member
Vesting period | 4 years
Termination period | 7 years
Shares available for grant | 50,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = crai_EmployeeAndDirectorsStockOptionsMember / us-gaap_PlanNameAxis = crai_NonqualifiedInducementStockOptionPlan2009Member
Exercise price (in dollars per share) | $ 50.00 us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = crai_EmployeeAndDirectorsStockOptionsMember / us-gaap_PlanNameAxis = crai_NonqualifiedInducementStockOptionPlan2009Member

X
- Definition Represents shares the number of aggregate options granted under the share based compensation plan. + References No definition available. + Details
Name: | crai_ShareBasedCompensationArrangementByShareBasedPaymentAwardAggregateOptionsGranted
Namespace Prefix: | crai_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The period of time, from the grant date until the time at which the share-based option expires. + References No definition available. + Details
Name: | crai_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationTerm
Namespace Prefix: | crai_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PlanNameAxis=crai_IncentiveAndNonqualifiedStockOptionPlan1998Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=crai_NonqualifiedInducementStockOptionPlan2004Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=crai_NonqualifiedInducementStockOptionPlan2009Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |