2021 Q1 Form 10-K Financial Statement
#000156459021012509 Filed on March 11, 2021
Income Statement
Concept | 2021 Q1 | 2020 | 2019 Q4 |
---|---|---|---|
Revenue | $0.00 | $0.00 | |
YoY Change | |||
Cost Of Revenue | |||
YoY Change | |||
Gross Profit | |||
YoY Change | |||
Gross Profit Margin | |||
Selling, General & Admin | $8.370M | $23.03M | |
YoY Change | 72.58% | 24.76% | |
% of Gross Profit | |||
Research & Development | $29.10M | $103.5M | |
YoY Change | 24.28% | 71.41% | |
% of Gross Profit | |||
Depreciation & Amortization | $1.070M | $2.600M | $730.0K |
YoY Change | 154.76% | 116.67% | 386.67% |
% of Gross Profit | |||
Operating Expenses | $37.46M | $126.5M | |
YoY Change | 60.01% | 109.54% | |
Operating Profit | -$37.46M | -$126.5M | |
YoY Change | 32.53% | ||
Interest Expense | $838.0K | $3.506M | |
YoY Change | -8.32% | -1.32% | |
% of Operating Profit | |||
Other Income/Expense, Net | -$12.00K | $280.0K | |
YoY Change | -103.02% | -89.06% | |
Pretax Income | -$38.31M | -$129.8M | |
YoY Change | 33.11% | 49.98% | |
Income Tax | $0.00 | $0.00 | |
% Of Pretax Income | |||
Net Earnings | -$38.31M | -$129.8M | |
YoY Change | 33.11% | 50.01% | |
Net Earnings / Revenue | |||
Basic Earnings Per Share | |||
Diluted Earnings Per Share | -$618.1K | -$3.605M | |
COMMON SHARES | |||
Basic Shares Outstanding | 62.11M | ||
Diluted Shares Outstanding |
Balance Sheet
Concept | 2021 Q1 | 2020 | 2019 Q4 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $270.0M | $309.2M | |
YoY Change | 161.12% | 146.77% | |
Cash & Equivalents | $169.8M | $84.00M | $87.78M |
Short-Term Investments | $100.2M | $225.2M | |
Other Short-Term Assets | $4.000M | $4.800M | |
YoY Change | -23.08% | 166.67% | |
Inventory | |||
Prepaid Expenses | |||
Receivables | |||
Other Receivables | |||
Total Short-Term Assets | $274.0M | $314.0M | $127.2M |
YoY Change | 152.3% | 146.86% | 290.12% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $50.20M | $48.30M | $10.86M |
YoY Change | 30.39% | 343.12% | 219.35% |
Goodwill | $4.228M | ||
YoY Change | |||
Intangibles | $1.320M | ||
YoY Change | |||
Long-Term Investments | |||
YoY Change | |||
Other Assets | $3.600M | $3.600M | $3.411M |
YoY Change | -2.7% | 5.88% | -2.54% |
Total Long-Term Assets | $59.30M | $57.50M | $19.82M |
YoY Change | 24.32% | 190.4% | 58.54% |
TOTAL ASSETS | |||
Total Short-Term Assets | $274.0M | $314.0M | $127.2M |
Total Long-Term Assets | $59.30M | $57.50M | $19.82M |
Total Assets | $333.3M | $371.5M | $147.0M |
YoY Change | 113.24% | 152.72% | 225.93% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $2.500M | $800.0K | $4.929M |
YoY Change | -67.53% | -83.67% | 69.97% |
Accrued Expenses | $20.40M | $27.40M | |
YoY Change | -5.99% | 122.76% | |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $0.00 | $0.00 | |
YoY Change | |||
Long-Term Debt Due | $3.000M | $0.00 | $3.000M |
YoY Change | -50.0% | -100.0% | |
Total Short-Term Liabilities | $27.80M | $30.00M | $21.86M |
YoY Change | -30.33% | 36.99% | 68.12% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $26.20M | $29.10M | $26.14M |
YoY Change | 12.93% | 11.49% | 36.86% |
Other Long-Term Liabilities | $51.80M | $50.30M | $5.421M |
YoY Change | 9.28% | 91.25% | -68.48% |
Total Long-Term Liabilities | $78.00M | $79.40M | $31.56M |
YoY Change | 10.48% | 51.53% | -13.06% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $27.80M | $30.00M | $21.86M |
Total Long-Term Liabilities | $78.00M | $79.40M | $31.56M |
Total Liabilities | $105.9M | $109.5M | $74.33M |
YoY Change | -4.16% | 47.38% | 50.47% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | -$152.2M | ||
YoY Change | |||
Common Stock | $2.691M | ||
YoY Change | |||
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $227.5M | $262.0M | -$149.5M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $333.3M | $371.5M | $147.0M |
YoY Change | 113.24% | 152.72% | 225.93% |
Cashflow Statement
Concept | 2021 Q1 | 2020 | 2019 Q4 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | -$38.31M | -$129.8M | |
YoY Change | 33.11% | 50.01% | |
Depreciation, Depletion And Amortization | $1.070M | $2.600M | $730.0K |
YoY Change | 154.76% | 116.67% | 386.67% |
Cash From Operating Activities | -$39.06M | -$113.3M | -$35.74M |
YoY Change | 70.66% | 75.61% | 192.71% |
INVESTING ACTIVITIES | |||
Capital Expenditures | $475.0K | $16.91M | -$3.210M |
YoY Change | -86.49% | 227.93% | 409.52% |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | $125.0M | -$187.5M | -$18.66M |
YoY Change | -5181.3% | 402.6% | |
Cash From Investing Activities | $124.5M | -$204.4M | -$21.86M |
YoY Change | -2184.8% | 381.42% | 3369.84% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | |||
YoY Change | |||
Debt Paid & Issued, Net | |||
YoY Change | |||
Cash From Financing Activities | 360.0K | 313.9M | 7.880M |
YoY Change | -91.72% | 91.0% | 67.3% |
NET CHANGE | |||
Cash From Operating Activities | -39.06M | -113.3M | -35.74M |
Cash From Investing Activities | 124.5M | -204.4M | -21.86M |
Cash From Financing Activities | 360.0K | 313.9M | 7.880M |
Net Change In Cash | 85.83M | -3.818M | -49.72M |
YoY Change | -450.15% | -106.65% | 511.56% |
FREE CASH FLOW | |||
Cash From Operating Activities | -$39.06M | -$113.3M | -$35.74M |
Capital Expenditures | $475.0K | $16.91M | -$3.210M |
Free Cash Flow | -$39.53M | -$130.2M | -$32.53M |
YoY Change | 49.73% | 86.88% | 180.92% |
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|
-448000 | |
CY2020 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
7220000 | |
CY2019 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
3050000 | |
CY2019 | pstx |
Change In Fair Value Of Contingent Liabilities
ChangeInFairValueOfContingentLiabilities
|
6679000 | |
CY2020 | us-gaap |
Fair Value Adjustment Of Warrants
FairValueAdjustmentOfWarrants
|
387000 | |
CY2019 | us-gaap |
Fair Value Adjustment Of Warrants
FairValueAdjustmentOfWarrants
|
-519000 | |
CY2020 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-805000 | |
CY2019 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-853000 | |
CY2020 | pstx |
Accretion Of Investment Discount Net
AccretionOfInvestmentDiscountNet
|
174000 | |
CY2019 | pstx |
Accretion Of Investment Discount Net
AccretionOfInvestmentDiscountNet
|
128000 | |
CY2019 | pstx |
Imputed Rent Expense
ImputedRentExpense
|
111000 | |
CY2019 | us-gaap |
Write Off Of Deferred Debt Issuance Cost
WriteOffOfDeferredDebtIssuanceCost
|
855000 | |
CY2020 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
3296000 | |
CY2019 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
-726000 | |
CY2020 | pstx |
Increase Decrease In Operating Lease Right Of Use Assets
IncreaseDecreaseInOperatingLeaseRightOfUseAssets
|
3108000 | |
CY2020 | us-gaap |
Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
|
207000 | |
CY2019 | us-gaap |
Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
|
1676000 | |
CY2020 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-4171000 | |
CY2019 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
1530000 | |
CY2020 | us-gaap |
Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
|
10320000 | |
CY2019 | us-gaap |
Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
|
7132000 | |
CY2020 | pstx |
Increase Decrease In Operating Lease Liabilities
IncreaseDecreaseInOperatingLeaseLiabilities
|
-131000 | |
CY2019 | us-gaap |
Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
|
1755000 | |
CY2020 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-113328000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-64518000 | |
CY2020 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
16908000 | |
CY2019 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
5156000 | |
CY2020 | us-gaap |
Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
|
295023000 | |
CY2019 | us-gaap |
Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
|
71308000 | |
CY2020 | us-gaap |
Proceeds From Sale Of Short Term Investments
ProceedsFromSaleOfShortTermInvestments
|
107500000 | |
CY2019 | us-gaap |
Proceeds From Sale Of Short Term Investments
ProceedsFromSaleOfShortTermInvestments
|
34000000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
164371000 | |
CY2020 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
-3818000 | |
CY2019 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
57389000 | |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
87784000 | |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
30395000 | |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
83966000 | |
CY2019 | pstx |
Noncash Investing And Financing Activities Issuance Of Common Stock For Acquisition
NoncashInvestingAndFinancingActivitiesIssuanceOfCommonStockForAcquisition
|
10596000 | |
CY2020 | pstx |
Purchases Of Property And Equipment Included In Accounts Payable And Accrued Liabilities
PurchasesOfPropertyAndEquipmentIncludedInAccountsPayableAndAccruedLiabilities
|
211000 | |
CY2019 | pstx |
Purchases Of Property And Equipment Included In Accounts Payable And Accrued Liabilities
PurchasesOfPropertyAndEquipmentIncludedInAccountsPayableAndAccruedLiabilities
|
1887000 | |
CY2020 | pstx |
Tenant Improvements Receivable From Landlord
TenantImprovementsReceivableFromLandlord
|
137000 | |
CY2019 | pstx |
Tenant Improvements Receivable From Landlord
TenantImprovementsReceivableFromLandlord
|
421000 | |
CY2019 | us-gaap |
Construction In Progress Expenditures Incurred But Not Yet Paid
ConstructionInProgressExpendituresIncurredButNotYetPaid
|
2166000 | |
CY2020 | pstx |
Operating Lease Right Of Use Assets And Lease Liabilities
OperatingLeaseRightOfUseAssetsAndLeaseLiabilities
|
5346000 | |
CY2020 | pstx |
Conversion Of Redeemable Convertible Preferred Stock To Common Stock Upon Closing Of Initial Public Offering
ConversionOfRedeemableConvertiblePreferredStockToCommonStockUponClosingOfInitialPublicOffering
|
326313000 | |
CY2019Q3 | us-gaap |
Security Deposit
SecurityDeposit
|
100000 | |
CY2020 | us-gaap |
Interest Paid Net
InterestPaidNet
|
3027000 | |
CY2019 | us-gaap |
Interest Paid Net
InterestPaidNet
|
2631000 | |
CY2020 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<p style="margin-bottom:0pt;margin-top:6pt;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Use of Estimates </p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:5.24%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The preparation of consolidated financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. On an ongoing basis, the Company evaluates its estimates, which include, but are not limited to, estimates related to accrued expenses, contingent consideration, warrant liability, stock-based compensation expense, deferred tax valuation allowances and, prior to the Company’s IPO, the fair value of common stock. The Company bases its estimates on historical experience and other market-specific or relevant assumptions that it believes to be reasonable under the circumstances. Actual results may differ from those estimates or assumptions. </p> <p style="margin-top:12pt;margin-bottom:0pt;text-indent:5.24%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Prior to the IPO, the Company utilized significant estimates and assumptions in determining the fair value of its common stock. The Company has utilized various valuation methodologies in accordance with the framework of the 2004 American Institute of Certified Public Accountants Technical Practice Aid, <font style="font-style:italic;">Valuation of Privately-Held Company Equity Securities Issued as Compensation, </font>to estimate the fair value of its common stock. Each valuation methodology includes estimates and assumptions that require the Company’s judgment. These estimates and assumptions include a number of objective and subjective factors, including the prices at which the Company sold shares of preferred stock and the superior rights, preferences and privileges of the preferred stock relative to the common stock; the Company’s stage of development and material risks related to its business; the progress of the Company’s research and development programs, including the status and results of preclinical studies for its product candidates and progress of its development of manufacturing processes; external market conditions affecting the biopharmaceutical industry and trends within the biopharmaceutical industry; the Company’s results of operations and financial position, including its levels of available capital resources, outstanding debt and its historical and forecasted performance and operating results; the lack of an active public market for the Company’s common stock and preferred stock; the likelihood of achieving a liquidity event, such as an IPO or sale of the Company in light of prevailing market conditions; the hiring of key personnel; and the analysis of IPOs and the market performance of publicly traded companies in the biopharmaceutical industry, as well as recently completed mergers and acquisitions of peer companies. Significant changes to the key assumptions used in the valuations could result in different fair values of common stock at each valuation date.</p> | |
CY2020 | us-gaap |
Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
|
<p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-style:italic;font-family:Times New Roman;font-size:10pt;text-transform:none;font-variant: normal;">Concentration of Credit Risk </p> <p style="Background-color:#FFFFFF;margin-bottom:0pt;margin-top:6pt;text-indent:5.24%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash, cash equivalents and short-term investments. The Company maintains its cash and cash equivalent balances with high-quality financial institutions and, consequently, the Company believes that such funds are subject to minimal credit risk. Deposits held at these institutions may exceed the amount of insurance provided on such deposits.</p> | |
CY2019Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
106266000 | |
CY2020Q4 | pstx |
Accrued Contract Research Services Current
AccruedContractResearchServicesCurrent
|
15822000 | |
CY2019Q4 | us-gaap |
Other Prepaid Expense Current
OtherPrepaidExpenseCurrent
|
434000 | |
CY2020Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
27931000 | |
CY2019Q4 | pstx |
Accrued Contract Research Services Current
AccruedContractResearchServicesCurrent
|
7993000 | |
CY2020Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
6793000 | |
CY2020Q4 | pstx |
Prepaid Landlord Reimbursement
PrepaidLandlordReimbursement
|
137000 | |
CY2019Q4 | pstx |
Prepaid Landlord Reimbursement
PrepaidLandlordReimbursement
|
421000 | |
CY2019Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
3283000 | |
CY2019Q4 | pstx |
Accrued Lease Cancellation Fee Payable Current
AccruedLeaseCancellationFeePayableCurrent
|
979000 | |
CY2020Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
1839000 | |
CY2019Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
1671000 | |
CY2020Q4 | us-gaap |
Prepaid Rent
PrepaidRent
|
217000 | |
CY2019Q4 | us-gaap |
Prepaid Rent
PrepaidRent
|
259000 | |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
295894000 | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
106247000 | |
CY2020Q4 | us-gaap |
Prepaid Insurance
PrepaidInsurance
|
2226000 | |
CY2019Q4 | us-gaap |
Prepaid Insurance
PrepaidInsurance
|
204000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Gain Loss Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax
|
5000 | |
CY2019Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Gain Loss Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainLossBeforeTax
|
19000 | |
CY2020Q4 | pstx |
Prepaid Contract Research Services
PrepaidContractResearchServices
|
651000 | |
CY2019Q4 | pstx |
Prepaid Contract Research Services
PrepaidContractResearchServices
|
543000 | |
CY2020Q4 | us-gaap |
Other Prepaid Expense Current
OtherPrepaidExpenseCurrent
|
1613000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
295899000 | |
CY2020Q4 | us-gaap |
Cash Cash Equivalents And Short Term Investments
CashCashEquivalentsAndShortTermInvestments
|
309200000 | |
CY2020 | us-gaap |
Number Of Operating Segments
NumberOfOperatingSegments
|
1 | |
CY2020 | us-gaap |
Variable Lease Payment
VariableLeasePayment
|
0 | |
CY2020Q4 | pstx |
Cash Collateral Held In Bank
CashCollateralHeldInBank
|
200000 | |
CY2019Q4 | pstx |
Cash Collateral Held In Bank
CashCollateralHeldInBank
|
200000 | |
CY2020Q4 | us-gaap |
Accounts Payable Current And Noncurrent
AccountsPayableCurrentAndNoncurrent
|
100000 | |
CY2019Q4 | us-gaap |
Accounts Payable Current And Noncurrent
AccountsPayableCurrentAndNoncurrent
|
0 | |
CY2020 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | |
CY2019 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | |
CY2020 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | |
CY2019 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | |
CY2019Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
12867000 | |
CY2020Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
4595000 | |
CY2019Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
2009000 | |
CY2020 | us-gaap |
Depreciation
Depreciation
|
2600000 | |
CY2019 | us-gaap |
Depreciation
Depreciation
|
1200000 | |
CY2020Q4 | us-gaap |
Indefinite Lived Intangible Assets Excluding Goodwill
IndefiniteLivedIntangibleAssetsExcludingGoodwill
|
1320000 | |
CY2019Q4 | us-gaap |
Indefinite Lived Intangible Assets Excluding Goodwill
IndefiniteLivedIntangibleAssetsExcludingGoodwill
|
1320000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Securities Noncurrent
AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
|
0 | |
CY2019Q4 | us-gaap |
Available For Sale Securities Debt Securities Noncurrent
AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
|
0 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
|
1271000 | |
CY2020 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
|
387000 | |
CY2020 | pstx |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Stockholders Equity Deficit
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInStockholdersEquityDeficit
|
-1658000 | |
CY2020 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
|
0 | |
CY2019 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
|
0 | |
CY2017Q3 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
300000 | |
CY2020Q4 | us-gaap |
Financial Liabilities Fair Value Disclosure
FinancialLiabilitiesFairValueDisclosure
|
600000 | |
CY2020Q3 | us-gaap |
Temporary Equity Shares Authorized
TemporaryEquitySharesAuthorized
|
46809523 | |
CY2020Q3 | us-gaap |
Temporary Equity Shares Issued
TemporaryEquitySharesIssued
|
42953085 | |
CY2020Q3 | us-gaap |
Temporary Equity Shares Outstanding
TemporaryEquitySharesOutstanding
|
42953085 | |
CY2020 | us-gaap |
Operating Lease Expense
OperatingLeaseExpense
|
6000000 | |
CY2019 | us-gaap |
Operating Lease Expense
OperatingLeaseExpense
|
2500000 | |
CY2020Q3 | us-gaap |
Convertible Preferred Stock Shares Issued Upon Conversion
ConvertiblePreferredStockSharesIssuedUponConversion
|
34445108 | |
CY2019Q4 | us-gaap |
Temporary Equity Liquidation Preference
TemporaryEquityLiquidationPreference
|
222173000 | |
CY2020Q3 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
326313000 | |
CY2020Q3 | us-gaap |
Temporary Equity Liquidation Preference
TemporaryEquityLiquidationPreference
|
326313000 | |
CY2020Q4 | pstx |
Authorized For Future Issuance Under Employee Stock Purchase Plan
AuthorizedForFutureIssuanceUnderEmployeeStockPurchasePlan
|
615000 | |
CY2020Q4 | us-gaap |
Common Stock Capital Shares Reserved For Future Issuance
CommonStockCapitalSharesReservedForFutureIssuance
|
11757088 | |
CY2020 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
4800000 | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P8Y8M12D | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
|
0.004 | |
CY2019Q4 | us-gaap |
Convertible Preferred Stock Shares Issued Upon Conversion
ConvertiblePreferredStockSharesIssuedUponConversion
|
26411194 | |
CY2020 | us-gaap |
Common Stock Voting Rights
CommonStockVotingRights
|
Each share of common stock is entitled to one vote. | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.089 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
5225000 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
|
0.016 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
|
0.014 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
4333000 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
|
0.026 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
|
0.79 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
|
0.80 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
|
0.86 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
|
0.87 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
4463000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
4597000 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
|
10017000 | |
CY2020Q4 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
|
8226000 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
2400000 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
700000 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
|
0.00 | |
CY2020Q4 | us-gaap |
Area Of Land
AreaOfLand
|
83000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Term Of Contract
LesseeOperatingLeaseTermOfContract
|
P108M | |
CY2020 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
7220000 | |
CY2019 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
3050000 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
3611030 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
|
1510762 | |
CY2020 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
219425 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
|
163760 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
4738607 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
|
4738607 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
1886521 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
8.58 | |
CY2020 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
|
13.36 | |
CY2020 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
1.02 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
|
11.76 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
10.34 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
|
10.34 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
7.56 | |
CY2019 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P8Y7M24D | |
CY2020 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P8Y4M2D | |
CY2020 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1
|
P8Y4M2D | |
CY2020 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
|
P6Y10M2D | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
10017000 | |
CY2020Q4 | us-gaap |
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
|
23000000 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
8.65 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
8.47 | |
CY2020 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
|
6900000 | |
CY2019 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
|
2800000 | |
CY2020 | us-gaap |
Lessee Operating Lease Option To Extend
LesseeOperatingLeaseOptionToExtend
|
The manufacturing and laboratory and office space lease agreements include two options to extend the term for a period of 5 years each. | |
CY2020 | us-gaap |
Lessee Operating Lease Existence Of Option To Extend
LesseeOperatingLeaseExistenceOfOptionToExtend
|
true | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Renewal Term
LesseeOperatingLeaseRenewalTerm
|
P5Y | |
CY2020 | pstx |
Lessee Operating Lease Number Of Options To Extend Term
LesseeOperatingLeaseNumberOfOptionsToExtendTerm
|
2 | |
CY2016Q1 | pstx |
Lessee Operating Lease Commencement Date
LesseeOperatingLeaseCommencementDate
|
2016-06-30 | |
CY2016Q1 | pstx |
Lessee Operating Lease Initial Term Of Contract
LesseeOperatingLeaseInitialTermOfContract
|
P10Y6M | |
CY2016Q1 | us-gaap |
Security Deposit
SecurityDeposit
|
100000 | |
CY2016Q1 | pstx |
Lease Termination Date
LeaseTerminationDate
|
2019-04-30 | |
CY2016Q1 | pstx |
Lease Termination Fee
LeaseTerminationFee
|
1500000 | |
CY2016Q1 | pstx |
Lease Termination Fee Number Of Installments
LeaseTerminationFeeNumberOfInstallments
|
3 | |
CY2016Q1 | pstx |
Lease Termination Fee Term
LeaseTerminationFeeTerm
|
P1Y6M | |
CY2018Q4 | pstx |
Lessee Operating Lease Commencement Date
LesseeOperatingLeaseCommencementDate
|
2019-04-01 | |
CY2018Q4 | us-gaap |
Lease Expiration Date1
LeaseExpirationDate1
|
2029-12-31 | |
CY2018Q4 | us-gaap |
Tenant Improvements
TenantImprovements
|
4200000 | |
CY2020Q4 | pstx |
Deferred Tax Liabilities Depreciation
DeferredTaxLiabilitiesDepreciation
|
1877000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
4735000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
20403000 | |
CY2020Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
30182000 | |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
0 | |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
0 | |
CY2019Q4 | pstx |
Deferred Tax Liabilities Depreciation
DeferredTaxLiabilitiesDepreciation
|
1295000 | |
CY2020Q4 | pstx |
Deferred Tax Liabilities Acquired Indefinite Lived Intangibles
DeferredTaxLiabilitiesAcquiredIndefiniteLivedIntangibles
|
369000 | |
CY2019Q4 | pstx |
Deferred Tax Liabilities Acquired Indefinite Lived Intangibles
DeferredTaxLiabilitiesAcquiredIndefiniteLivedIntangibles
|
369000 | |
CY2020Q4 | pstx |
Deferred Tax Liabilities Right Of Use Assets
DeferredTaxLiabilitiesRightOfUseAssets
|
6934000 | |
CY2020Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
9180000 | |
CY2019Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
1664000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
91091000 | |
CY2020 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
27253000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Tax Contingencies
IncomeTaxReconciliationTaxContingencies
|
1403000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
48026000 | |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
55000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
18170000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
55000 | |
CY2020Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
5457000 | |
CY2019Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2470000 | |
CY2020 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
8581000 | |
CY2019 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
5384000 | |
CY2020 | pstx |
Effective Income Tax Rate Reconciliation Permanent Adjustments
EffectiveIncomeTaxRateReconciliationPermanentAdjustments
|
-134000 | |
CY2018Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
755000 | |
CY2020 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
3211000 | |
CY2019 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
1715000 | |
CY2020 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
224000 | |
CY2020Q4 | us-gaap |
Income Tax Examination Penalties And Interest Accrued
IncomeTaxExaminationPenaltiesAndInterestAccrued
|
0 | |
CY2020 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
600000 | |
CY2019Q4 | pstx |
Lessee Operating Lease Commencement Date
LesseeOperatingLeaseCommencementDate
|
2020-07-29 | |
CY2019Q4 | us-gaap |
Lease Expiration Date1
LeaseExpirationDate1
|
2029-12-31 | |
CY2019Q4 | pstx |
Additional Tenant Reimbursements
AdditionalTenantReimbursements
|
1500000 | |
CY2019Q4 | us-gaap |
Security Deposit
SecurityDeposit
|
300000 | |
CY2019 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
300000 | |
CY2020Q4 | us-gaap |
Defined Contribution Plan Tax Status Extensible List
DefinedContributionPlanTaxStatusExtensibleList
|
us-gaap:QualifiedPlanMember | |
CY2019Q4 | us-gaap |
Defined Contribution Plan Tax Status Extensible List
DefinedContributionPlanTaxStatusExtensibleList
|
us-gaap:QualifiedPlanMember | |
CY2020 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-129775000 | |
CY2019 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-86527000 | |
CY2020 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
4859729 | |
CY2019 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
30143095 | |
CY2019 | pstx |
Effective Income Tax Rate Reconciliation Permanent Adjustments
EffectiveIncomeTaxRateReconciliationPermanentAdjustments
|
43000 | |
CY2020 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
956000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
428000 | |
CY2020 | us-gaap |
Income Tax Reconciliation Tax Credits
IncomeTaxReconciliationTaxCredits
|
10735000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Tax Credits
IncomeTaxReconciliationTaxCredits
|
5828000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
7101000 | |
CY2020Q4 | pstx |
Deferred Tax Assets Lease Liabilities
DeferredTaxAssetsLeaseLiabilities
|
8388000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
982000 | |
CY2020 | pstx |
Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits
EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits
|
2445000 | |
CY2019 | pstx |
Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits
EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits
|
1643000 | |
CY2020 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-27000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
1151000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
100216000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
49635000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
43756000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
13574000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
55000 | |
CY2020 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
43061000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
25896000 | |
CY2020Q4 | pstx |
Deferred Tax Assets Amortization
DeferredTaxAssetsAmortization
|
1558000 | |
CY2019Q4 | pstx |
Deferred Tax Assets Amortization
DeferredTaxAssetsAmortization
|
1706000 | |
CY2020Q4 | pstx |
Deferred Tax Assets Grant Income
DeferredTaxAssetsGrantIncome
|
6648000 | |
CY2019Q4 | pstx |
Deferred Tax Assets Grant Income
DeferredTaxAssetsGrantIncome
|
5483000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
|
1855000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
65058000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
33279000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
15727000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
|
915000 |