Acquisitions - Schedule of Purchase Price for REV (Details) - REV $ / shares in Units, $ in Thousands	Sep. 03, 2014 USD ($) $ / shares shares
Business Acquisition [Line Items]
Number of shares of common stock issued | shares	27,407
Multiplied by PFSweb Inc.'s stock price | $ / shares	$ 10.95
Share consideration	$ 300
Aggregate cash payments	4,254
Performance-based contingent payments (based on fair value at acquisition date)	1,389
Total purchase price	$ 5,943