XML 19 R46.htm IDEA: XBRL DOCUMENT v2.4.0.6

401(k) Savings Plan (Details) (USD $)	12 Months Ended
	Dec. 31, 2012 Age Hour	Dec. 31, 2011	Dec. 31, 2010
401(k) Savings Plan (Textual) [Abstract]
Age to participate in the savings plan	21
Time to participate in the savings plan	1,000
Consecutive period to participate in the savings plan	12 months
Discretionary Company contributions	$ 0	$ 0	$ 0
Contributions by management	100.00%
Percentage of each participating employee annual compensation	3.00%
Employee's contributions	50.00%
Additional annual compensation	2.00%
Matching contributions	$ 610,000	$ 494,000	$ 413,000

X

- Definition

Age to participate in the savings plan.

+ References

No definition available.

+ Details

Name:	bbsi_AgeToParticipateInSavingsPlan
Namespace Prefix:	bbsi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Consecutive period of service following initial date of employment for saving plan valuation.

+ References

No definition available.

+ Details

Name:	bbsi_ConsecutivePeriodOfServiceFollowingInitialDateOfEmploymentForSavingPlanValuation
Namespace Prefix:	bbsi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Defined contribution employee contribution percent.

+ References

No definition available.

+ Details

Name:	bbsi_DefinedContributionEmployeeContributionPercent
Namespace Prefix:	bbsi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Defined contribution plan employer matching contribution amount.

+ References

No definition available.

+ Details

Name:	bbsi_DefinedContributionPlanEmployerMatchingContributionAmount
Namespace Prefix:	bbsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Employee contribution portion of annual compensation.

+ References

No definition available.

+ Details

Name:	bbsi_EmployeeContributionPortionOfAnnualCompensation
Namespace Prefix:	bbsi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	bbsi_FourZeroOneKSavingsPlanTextualAbstract
Namespace Prefix:	bbsi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Time to participate in the savings plan.

+ References

No definition available.

+ Details

Name:	bbsi_TimeToParticipateInSavingsPlan
Namespace Prefix:	bbsi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration