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Capital management (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Capital management
Common shares	$ 217,393	$ 205,825
Deficit	(217,931)	(189,362)
Long-term debt	7,104	7,174
Capital structure	$ 6,566	$ 23,637

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- References

No definition available.

+ Details

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Namespace Prefix:	prof_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

The amount of total capital as defined in the regulations.

+ References

No definition available.

+ Details

Name:	prof_CapitalStructure
Namespace Prefix:	prof_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

The amount of issued capital in the capital management.

+ References

No definition available.

+ Details

Name:	prof_CommonSharesCapitalManagement
Namespace Prefix:	prof_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

The amount of deficit in the capital management.

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No definition available.

+ Details

Name:	prof_DeficitCapitalManagement
Namespace Prefix:	prof_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

The amount of long-term debt in the capital management.

+ References

No definition available.

+ Details

Name:	prof_LongTermDebtCapitalManagement
Namespace Prefix:	prof_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant