Stock Based Compensation (Details 1) (USD $)	6 Months Ended
Jun. 30, 2013
Grant Date	Jun. 02, 2011
Strike Price (in dollars per share)	$ 5.40
Expiration Date	Jun. 01, 2016
Options Remaining	10,000
Proceeds if Exercised	54,000
Call Feature	None

Description of a feature that permits the issuer of the options to repay or convert it before the stated maturity date (early retirement date).

No definition available.

Name:	pdo_ShareBasedCompensationArrangementByShareBasedPaymentOptionsCallFeature
Namespace Prefix:	pdo_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration