Organization and Principal Activities (Narrative) (Details) In Millions, unless otherwise specified	Dec. 31, 2014 USD ($)	Dec. 31, 2014 CNY
Organization and Principal Activities [Abstract]
Registered capital and PRC statutory reserves of VIEs used to solely settle obligations of VIEs	$ 5.1	31.4

The amount of registered capital and PRC statutory reserves of VIEs used to solely settle obligations of VIEs.

No definition available.

Name:	feng_RegisteredCapitalAndPrcStatutoryReservesOfViesUsedToSolelySettleObligationsOfVie
Namespace Prefix:	feng_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant