XML 20 R24.htm IDEA: XBRL DOCUMENT v2.4.0.6

Income Taxes (Details Textual) (USD $)	3 Months Ended
Income Taxes (Details Textual) (USD $)	Mar. 31, 2013
Tax Loss	$ 352,000
Tax Loss Per Share	$ 0.10

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

No definition available.

Name:	pdnla_TaxLoss
Namespace Prefix:	pdnla_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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.

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