Equity offering, number of common shares to be issued.

No definition available.

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Namespace Prefix:	fna_
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Balance Type:	na
Period Type:	duration

- Definition

Equity offering, value of securities to be issued.

+ References

No definition available.

+ Details

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Namespace Prefix:	fna_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Threshold amount of operating cash flow to calculate fixed charge coverage ratio.

+ References

No definition available.

+ Details

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Namespace Prefix:	fna_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Threshold amount of operating cash flow to calculate liquidity ratio.

+ References

No definition available.

+ Details

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Namespace Prefix:	fna_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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- Details

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Balance Type:
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- Details

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Namespace Prefix:
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Balance Type:
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- Details

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- Details

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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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Balance Type:
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Subsequent Events - Additional Information (Details) - USD ($)					3 Months Ended	9 Months Ended
	Nov. 09, 2022	Nov. 07, 2022	Oct. 21, 2022	May 06, 2021	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Restricted Stock Units
Subsequent Event [Line Items]
Number of shares granted					0	87,641	0
Weighted average grant price						$ 17.12
MidCap Credit Agreements
Subsequent Event [Line Items]
Total borrowing capacity				$ 70,000,000
Revolving Loan \| MidCap Credit Agreements
Subsequent Event [Line Items]
Total borrowing capacity				$ 30,000,000
Revolving Loan \| MidCap Credit Agreements \| LIBOR
Subsequent Event [Line Items]
Variable interest rate				3.00%
Subsequent Event \| 2021 Plan \| Restricted Stock Units
Subsequent Event [Line Items]
Number of shares granted			852,556
Weighted average grant price			$ 17.77
Vesting period			4 years
Subsequent Event \| MidCap Credit Agreements \| LIBOR
Subsequent Event [Line Items]
Variable interest rate	6.00%
Subsequent Event \| Secured Term Loan Facility
Subsequent Event [Line Items]
Threshold amount of operating cash flow to calculate liquidity ratio	$ 0
Threshold Amount of Operating Cash Flow to Calculate Fixed Charge Coverage Ratio	0
Subsequent Event \| Revolving Loan \| MidCap Credit Agreements
Subsequent Event [Line Items]
Total borrowing capacity	$ 50,000,000
Subsequent Event \| Revolving Loan \| MidCap Credit Agreements \| LIBOR
Subsequent Event [Line Items]
Variable interest rate	3.75%
Subsequent Event \| Maximum
Subsequent Event [Line Items]
Equity offering, value of securities to be issued		$ 100,000,000
Equity offering, number of common shares to be issued		10,000