Note 10 - Foreclosed Real Estate and Repossessed Personal Property (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Foreclosed Real Estate And Repossessed Personal Property [Abstract]
Number of Developed Lots Included in Real Estate Segment	77	77
Amount of Developed Residential Lots (in Dollars)	$ 5.9	$ 6.5
Number of Real Estate Properties	1	1

The number of developed lots which are included in the real estate segment.

No definition available.

Name:	plmt_NumberOfDevelopedLotsIncludedInRealEstateSegment
Namespace Prefix:	plmt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant