Name:	pfti_ShareBasedCompensationSharesAuthorizedUnderEquityInstrumentsOtherThanOptionsExercisePriceRangeLineItems
Namespace Prefix:	pfti_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under equity instruments other than options and other required information pertaining to awards in the customized range.

No definition available.

Name:	pfti_ShareBasedCompensationSharesAuthorizedUnderEquityInstrumentsOtherThanOptionsExercisePriceRangeLowerRangeLimit
Namespace Prefix:	pfti_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

The number of shares reserved for issuance pertaining to the outstanding equity instruments other than options as of the balance sheet date in the customized range of exercise prices.

No definition available.

Name:	pfti_ShareBasedCompensationSharesAuthorizedUnderEquityInstrumentsOtherThanOptionsExercisePriceRangeNumberOfOutstandingWarrants
Namespace Prefix:	pfti_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under equity instruments other than options and other required information pertaining to awards in the customized range.

No definition available.

Name:	pfti_ShareBasedCompensationSharesAuthorizedUnderEquityInstrumentsOtherThanOptionsExercisePriceRangeUpperRangeLimit
Namespace Prefix:	pfti_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding equity instruments other than options which are in the customized range of exercise prices.

No definition available.

Name:	pfti_SharebasedCompensationSharesAuthorizedExercisePriceRangeOutstandingEquityInstrumentOtherThanOptionsWeightedAverageExercisePriceBeginningBalance1
Namespace Prefix:	pfti_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Weighted average remaining contractual term of outstanding equity instruments other than options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.