XML 44 R32.htm IDEA: XBRL DOCUMENT v3.24.1

Stockholders’ Equity (Tables)

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Schedule of Liability-Classified Warrants Outstanding

As of December 31, 2023, the Company had the following liability-classified warrants outstanding (amounts in thousands):

		Number of warrants
		on common shares				Amount
Balance as of December 31, 2021			—			$	—
Recognition of warrant liabilities			92				3,674
Change in fair value of warrants			—				(1,595	)
Balance as of December 31, 2022			92				2,079
Recognition of warrant liabilities			143				3,162
Change in fair value of warrants			—				(3,493	)
Balance as of December 31, 2023			235			$	1,748

Schedule of Initial Fair Value of Purchase Warrants

As of December 31, 2023, the Company had the following equity-classified warrants outstanding (share amounts in thousands):

		2022 Purchase Warrant				2023 Purchase Warrant
Expected term based on contractual term			5.5 years				5.0 years
Interest rate (risk-free rate):			3.75	%			4.16	%
Expected volatility			123	%			118	%
Expected dividend			—				—
Fair value of warrants (in thousands)		$	3,674			$	3,162

The table also includes the total fair value determined at valuation date based on these assumptions.

		2022 Purchase Warrant				2023 Purchase Warrant
Expected term based on contractual term			4.4 years				4.2 years
Interest rate (risk-free rate):			3.84	%			3.84	%
Expected volatility			116	%			116	%
Expected dividend			—				—
Fair value of warrants (in thousands)		$	653			$	1,095

Schedule of Initial Fair Value of Purchase Warrants

As of December 31, 2023, the Company had the following equity-classified warrants outstanding (share amounts in thousands):

Warrant Type		Number of Shares				Exercise Price				Expiration
Balance as of December 31, 2022			33
Warrants expired			(1	)		$	47.00				January 2023
Warrants expired			(3	)		$	96.00				October 2023
Pre-funded warrants issued			86			$	0.40				—
Pre-funded warrants exercised			(115	)		$	0.40				—
Balance as of December 31, 2023			-

As of December 31, 2022, the Company had the following equity-classified warrants outstanding (share amounts in thousands):

Warrant Type		Number of Shares				Exercise Price				Expiration
Common stock			1			$	1,880.00				January 2023
Common stock			3			$	96.00				October 2023
Common stock			29			$	0.40				—
			33

X

- References

No definition available.

+ Details

Name:	prso_StockholdersEquityTablesLineItems
Namespace Prefix:	prso_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-SubTopic 10
-Topic 820
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-1

+ Details

Name:	us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-2

+ Details

Name:	us-gaap_ScheduleOfStockholdersEquityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration