Organization and Business (Details Textual)	9 Months Ended
Sep. 30, 2013
Organization And Business [Line Items]
Entity, Principal Product Proven Efficiency Percentage Description	Our flagship brand is Cold-EEZE® Cold Remedy and our principal product is Cold-EEZE® zinc gluconate lozenges, proven in clinical studies to reduce the duration of the common cold by 42%.

Description about the efficiency of entities principal product proven in studies.

No definition available.

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Namespace Prefix:	prph_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration