Debt Instrument, Covenant, Leverage Ratio

No definition available.

Name:	prgx_DebtInstrumentCovenantLeverageRatio
Namespace Prefix:	prgx_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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 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

+ Details

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

Name:	us-gaap_CreditFacilityAxis=prgx_SunTrustRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=prgx_SunTrustBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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- Details

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Balance Type:
Period Type:

- Details

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- Details

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- Details

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Namespace Prefix:
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- Details

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- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
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- Details

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- Details

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Subsequent Events (Details) - SunTrust Bank [Member]			12 Months Ended
Subsequent Events (Details) - SunTrust Bank [Member]	May 04, 2017 USD ($)	Dec. 23, 2014 USD ($)	Dec. 31, 2013	Jan. 01, 2019 USD ($)	Dec. 22, 2017 USD ($)	May 03, 2017 USD ($)	Jan. 17, 2014 USD ($)	Jan. 19, 2010 USD ($)
Sun Trust Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Maximum borrowing capacity of credit facility		$ 20,000,000.0			$ 25,000,000		$ 25,000,000	$ 15,000,000.0
Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Maximum borrowing capacity of credit facility	$ 35,000,000.0					$ 20,000,000.0
Scenario, Forecast [Member] \| Sun Trust Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Maximum borrowing capacity of credit facility				$ 30,000,000.0
Minimum [Member]
Subsequent Event [Line Items]
Applicable margin (percent)			2.25%
Maximum [Member]
Subsequent Event [Line Items]
Applicable margin (percent)			3.50%
London Interbank Offered Rate (LIBOR) [Member] \| Sun Trust Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Applicable margin (percent)		1.75%
Pricing Level One \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Leverage ratio	1.25
Line of credit facility, commitment fee percentage	0.25%
Pricing Level One \| London Interbank Offered Rate (LIBOR) [Member] \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Applicable margin (percent)	2.25%
Pricing Level One \| Base Rate [Member] \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Applicable margin (percent)	1.25%
Pricing Level Two \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Line of credit facility, commitment fee percentage	0.375%
Pricing Level Two \| Minimum [Member] \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Leverage ratio	1.25
Pricing Level Two \| Maximum [Member] \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Leverage ratio	1.75
Pricing Level Two \| London Interbank Offered Rate (LIBOR) [Member] \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Applicable margin (percent)	2.50%
Pricing Level Two \| Base Rate [Member] \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Applicable margin (percent)	1.50%
Pricing Level Three \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Leverage ratio	1.75
Line of credit facility, commitment fee percentage	0.375%
Pricing Level Three \| London Interbank Offered Rate (LIBOR) [Member] \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Applicable margin (percent)	2.75%
Pricing Level Three \| Base Rate [Member] \| Sun Trust Revolving Credit Facility [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Applicable margin (percent)	1.75%