Shareholder Rights Plan and Participating Preferred Stock (Details)	Dec. 31, 2012
Shareholder Rights Plan (Textual) [Abstract]
Common stock	15.00%

Percentage of common stock outstanding divested to exercise rights by common stock holders minimum.

No definition available.

Name:	prgx_PercentageOfCommonStockOutstandingDivestedToExerciseRightsByCommonStockHoldersMinimum
Namespace Prefix:	prgx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant