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ACCOUNTS RECEIVABLE AND ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details Textual)	Sep. 30, 2018 USD ($)
Home Depot [Member]
Contributions Payable	$ 1,000,000

X

- Definition

Represents the amount of contributions payable.

+ References

No definition available.

+ Details

Name:	pfin_ContributionsPayable
Namespace Prefix:	pfin_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=pfin_HomeDepotMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: