Note 14 - Related Party Transactions (Details Textual) - USD ($)	May 01, 2019	Apr. 01, 2019
Director [Member]
Related Party Transaction, Monthly Cash Payment	$ 13,500	$ 12,000

The amount of monthly cash payment made to a related party.

No definition available.

Name:	poai_RelatedPartyTransactionMonthlyCashPayment
Namespace Prefix:	poai_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant