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COMMITMENTS AND CONTINGENCIES - Revolving Credit Facility (Details) (Revolving credit facility, Bank of America, N.A. and Wells Fargo Capital Finance, LLC, USD $) | 12 Months Ended
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Dec. 27, 2013
Revolving Credit Facility [Line Items] |
Maximum borrowing capacity | $ 80,000,000
Remaining borrowing capacity | 80,000,000.0
Amount outstanding | 6,000,000
Unused capacity commitment fee percentage | 0.25%
Excess Liquidity Greater than $40 million | Minimum |
Revolving Credit Facility [Line Items] |
Revolving credit facility, excess liquidity | 40,000,000
Excess Liquidity Between $20 million and $40 million | Minimum |
Revolving Credit Facility [Line Items] |
Revolving credit facility, excess liquidity | 20,000,000
Excess Liquidity Between $20 million and $40 million | Maximum |
Revolving Credit Facility [Line Items] |
Revolving credit facility, excess liquidity | 40,000,000
Excess Liquidity Less than $20 million | Maximum |
Revolving Credit Facility [Line Items] |
Revolving credit facility, excess liquidity | 20,000,000
Liquidity requirement component |
Revolving Credit Facility [Line Items] |
Remaining borrowing capacity | 74,000,000
Cash and cash equivalents under control agreements | 124,500,000
Revolving credit facility, total liquidity | 198,500,000
Liquidity requirement component | Minimum |
Revolving Credit Facility [Line Items] |
Revolving credit facility, liquidity requirement | 12,000,000
Percent of eligible accounts receivable |
Revolving Credit Facility [Line Items] |
Revolving credit facility borrowing limits, % of accounts receivable | 85.00%
Liquidation value of pledged real estate |
Revolving Credit Facility [Line Items] |
Revolving credit facility borrowing limits, pledged real estate | 15,000,000
Revolving credit facility borrowing limits, quarterly reduction of pledged real estate | 400,000
Revolving credit facility borrowing limits, liquidation value of pledged real estate | $ 12,000,000
Prime Rate | Excess Liquidity Greater than $40 million |
Revolving Credit Facility [Line Items] |
Basis spread on variable rate | 0.50%
Prime Rate | Excess Liquidity Between $20 million and $40 million |
Revolving Credit Facility [Line Items] |
Basis spread on variable rate | 0.75%
Prime Rate | Excess Liquidity Less than $20 million |
Revolving Credit Facility [Line Items] |
Basis spread on variable rate | 1.00%
LIBOR Rate |
Revolving Credit Facility [Line Items] |
Basis spread on variable rate | 0.125%
LIBOR Rate | Excess Liquidity Greater than $40 million |
Revolving Credit Facility [Line Items] |
Basis spread on variable rate | 1.50%
LIBOR Rate | Excess Liquidity Between $20 million and $40 million |
Revolving Credit Facility [Line Items] |
Basis spread on variable rate | 1.75%
LIBOR Rate | Excess Liquidity Less than $20 million |
Revolving Credit Facility [Line Items] |
Basis spread on variable rate | 2.00%

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- Definition Under the terms of the revolving credit facility, the applicable interest rate spread added to the Prime or LIBOR Rate Loans interest rate for funds borrowed when excess liquidity is greater than a specified amount. + References No definition available. + Details
Name: | tbi_LineOfCreditFacilityExcessLiquidity
Namespace Prefix: | tbi_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Current liquidation value of the pledged real estate as of the reporting date for the purpose of computing the revolving credit facility borrowing limit. This is the maximum liquidation value of the pledged real estate less the quarterly reduction. This borrowing limit is in addition to the borrowing limit as a percentage of eligible accounts receivable. + References No definition available. + Details
Name: | tbi_RevolvingCreditFacilityBorrowingLimitsLiquidationValueOfPledgedRealEstate
Namespace Prefix: | tbi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Maximum liquidation value of the pledged real estate for purposes of calculating the revolving credit facility borrowing limit. + References No definition available. + Details
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Period Type: | duration

X
- Definition Revolving credit facility borrowing limit as a percentage of eligible accounts receivable. This borrowing limit is in addition to the current liquidation value of the pledged real estate as of the reporting date for the purpose of computing the revolving credit facility borrowing limit. + References No definition available. + Details
Name: | tbi_RevolvingCreditFacilityBorrowingLimitsPercentOfAccountsReceivable
Namespace Prefix: | tbi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Quarterly reduction of the maximum liquidation value of the pledged real estate for the purposes of computing the revolving credit facility borrowing limit. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cash and cash equivalents under control agreements as of the reporting date used to calculate liquidity for the purposes of meeting the excess liquidity terms under the revolving credit facility. + References No definition available. + Details
Name: | tbi_RevolvingCreditFacilityCashAndCashEquivalentsUnderControlAgreements
Namespace Prefix: | tbi_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The minimum liquidity required to be maintained in order to meet the terms of the revolving credit facility. + References No definition available. + Details
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Period Type: | duration

X
- Definition Total liquidity as of the reporting date consisting of the unused portion of the revolving credit facility and cash and cash equivalents under control agreements for the purposes of meeting the excess liquidity terms under the revolving credit facility. + References No definition available. + Details
Name: | tbi_RevolvingCreditFacilityTotalLiquidity
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Period Type: | duration

X
- 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
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- Details
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X
- 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 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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