Debt (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 30, 2012
Debt (Textual) [Abstract]
Outstanding debt under the Revolver with Union Bank, N.A.	$ 44.6
Debt (Additional Textual) [Abstract]
Aggregate principal amount	50.0
Minimum debt interest rate	3.47%
Maximum debt interest rate	3.79%
Revolver prepayment notice period	5 days
Period for audited financial statements submission (in days)	90 days
Percentage of commitment fee per annum	0.25%
Debt maturity date	Oct. 31, 2012
Extended debt maturity date	Oct. 31, 2013
Notice date to UB for extend the due date	Sep. 30, 2012
Loan under the Revolver bears interest at a variable rate	0.50%
Interest rate equal to the LIBOR rate	3.00%
UB extended debt, maturity date	Oct. 13, 2013
Letter of credit [Member]
Debt (Textual) [Abstract]
Outstanding debt under the Revolver with Union Bank, N.A.	$ 5.4

When presenting a range of interest rates, the highest stated (contractual) rate for funds borrowed under the debt agreement as of the balance sheet date.

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

- Definition

When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement as of the balance sheet date.

+ References

+ Details

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

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeVariableInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityAmountOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The percentage points (also referred to as 'margin') added to the reference rate as stated in the loan agreement and used to compute the variable rate on the loans receivable. For instance, the loan agreement might state that the interest rate the borrower is obligated to pay is the London Interbank Offered Rate (LIBOR) plus three quarters (3/4) of a percentage point adjusted quarterly (each three months). LIBOR in this example is the index or reference rate, 3/4 percentage point is the margin, the reference rate plus the margin is the fully indexed rate. This element would be used to report separately the margin.

+ References

No definition available.

+ Details

Name:	us-gaap_LoansReceivableBasisSpreadOnVariableRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	wage_DebtAdditionalTextualAbstract
Namespace Prefix:	wage_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	wage_DebtTextualAbstract
Namespace Prefix:	wage_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Extended debt instrument maturity date.

+ References

No definition available.

+ Details

Name:	wage_ExtendedDebtInstrumentMaturityDate
Namespace Prefix:	wage_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Notice date to ub for extend due date.

+ References

No definition available.

+ Details

Name:	wage_NoticeDateToUbForExtendDueDate
Namespace Prefix:	wage_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Revolver prepayment notice period to lender.

+ References

No definition available.

+ Details

Name:	wage_RevolverPrepaymentNoticePeriodToLender
Namespace Prefix:	wage_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Submission period for audited financial statements to provide debt instrument nonfinancial covenant information.

+ References

No definition available.

+ Details

Name:	wage_SubmissionPeriodForAuditedFinancialStatementsToProvideDebtInstrumentNonfinancialCovenantInformation
Namespace Prefix:	wage_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Ub extended debt maturity date.

+ References

No definition available.

+ Details

Name:	wage_UbExtendedDebtMaturityDate
Namespace Prefix:	wage_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration