Income Taxes (Details Textual) (USD $)	9 Months Ended	12 Months Ended
Sep. 30, 2012	Dec. 31, 2011
Tax Loss	$ 1,035,000	$ 8,500,000
Tax Loss Per Share	$ (0.28)	$ 2.47
Ordinary Loss		8,210,000
Ordinary Loss Per Share		$ 2.38
Capital Loss		$ 294,000
Capital Loss Per Share		$ 0.09

Amount of capital loss that is recognized during the reporting period.

No definition available.

The amount of capital loss for the period available to each share of common stock or common unit outstanding during the reporting period.

No definition available.

Amount of ordinary loss that is recognized during the reporting period.

No definition available.

The amount of ordinary loss for the period available to each share of common stock or common unit outstanding during the reporting period.

No definition available.

Name:	pdnla_OrdinaryLossPerShare
Namespace Prefix:	pdnla_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Amount of tax loss that is recognized during the reporting period.

No definition available.

The amount of tax loss for the period available to each share of common stock or common unit outstanding during the reporting period.

No definition available.