2024 Q1 Form 10-K Financial Statement
#000095017024021135 Filed on February 27, 2024
Income Statement
Concept | 2024 Q1 | 2023 Q4 | 2023 |
---|---|---|---|
Revenue | $0.00 | $0.00 | $0.00 |
YoY Change | |||
Cost Of Revenue | |||
YoY Change | |||
Gross Profit | |||
YoY Change | |||
Gross Profit Margin | |||
Selling, General & Admin | $5.551M | $14.60M | $40.97M |
YoY Change | -27.18% | 76.15% | 24.72% |
% of Gross Profit | |||
Research & Development | $10.54M | $1.000K | $32.14M |
YoY Change | -35.13% | -99.99% | -55.85% |
% of Gross Profit | |||
Depreciation & Amortization | $5.000K | $142.0K | $2.400M |
YoY Change | -99.29% | -79.18% | 2.04% |
% of Gross Profit | |||
Operating Expenses | $16.09M | $14.60M | $135.2M |
YoY Change | -39.18% | -45.42% | 27.97% |
Operating Profit | -$16.09M | -$135.2M | |
YoY Change | -39.18% | 27.97% | |
Interest Expense | $788.0K | $2.562M | $10.95M |
YoY Change | -69.58% | ||
% of Operating Profit | |||
Other Income/Expense, Net | -$560.0K | $75.00K | $10.54M |
YoY Change | -122.26% | -96.51% | 129.78% |
Pretax Income | -$16.65M | -$22.92M | -$124.7M |
YoY Change | -30.44% | -6.83% | 23.35% |
Income Tax | |||
% Of Pretax Income | |||
Net Earnings | -$16.65M | -$22.92M | -$124.7M |
YoY Change | -30.44% | -6.83% | 23.29% |
Net Earnings / Revenue | |||
Basic Earnings Per Share | -$3.53 | -$2.19 | |
Diluted Earnings Per Share | -$3.53 | -$0.40 | -$2.19 |
COMMON SHARES | |||
Basic Shares Outstanding | 58.24M | 58.00M | 57.02M |
Diluted Shares Outstanding | 4.718M shares | 57.02M |
Balance Sheet
Concept | 2024 Q1 | 2023 Q4 | 2023 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $213.3M | $184.3M | $184.3M |
YoY Change | -19.24% | -31.31% | -31.31% |
Cash & Equivalents | $200.4M | $184.3M | $184.3M |
Short-Term Investments | $12.92M | $0.00 | $0.00 |
Other Short-Term Assets | $3.395M | $3.762M | $3.762M |
YoY Change | -45.34% | -47.28% | -47.28% |
Inventory | |||
Prepaid Expenses | |||
Receivables | |||
Other Receivables | |||
Total Short-Term Assets | $216.7M | $188.0M | $188.0M |
YoY Change | -19.84% | -31.72% | -31.72% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $49.00K | $0.00 | $321.0K |
YoY Change | -99.85% | -100.0% | -98.86% |
Goodwill | |||
YoY Change | |||
Intangibles | |||
YoY Change | |||
Long-Term Investments | $0.00 | $0.00 | |
YoY Change | -100.0% | -100.0% | |
Other Assets | $21.00K | $0.00 | $114.0K |
YoY Change | -97.64% | -100.0% | -96.21% |
Total Long-Term Assets | $648.0K | $435.0K | $435.0K |
YoY Change | -98.37% | -99.07% | -99.07% |
TOTAL ASSETS | |||
Total Short-Term Assets | $216.7M | $188.0M | $188.0M |
Total Long-Term Assets | $648.0K | $435.0K | $435.0K |
Total Assets | $217.3M | $188.5M | $188.5M |
YoY Change | -29.9% | -41.46% | -41.46% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $7.131M | $250.0K | $250.0K |
YoY Change | 257.98% | -90.41% | -90.41% |
Accrued Expenses | $11.76M | $4.547M | $4.547M |
YoY Change | -4.79% | -56.43% | -56.43% |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $0.00 | $0.00 | $0.00 |
YoY Change | |||
Long-Term Debt Due | |||
YoY Change | |||
Total Short-Term Liabilities | $18.89M | $4.797M | $4.797M |
YoY Change | 31.71% | -63.22% | -63.22% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $0.00 | $0.00 | $0.00 |
YoY Change | |||
Other Long-Term Liabilities | $111.0K | $0.00 | $77.00K |
YoY Change | -99.43% | -100.0% | -99.39% |
Total Long-Term Liabilities | $111.0K | $0.00 | $77.00K |
YoY Change | -99.43% | -100.0% | -99.39% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $18.89M | $4.797M | $4.797M |
Total Long-Term Liabilities | $111.0K | $0.00 | $77.00K |
Total Liabilities | $19.16M | $4.874M | $4.874M |
YoY Change | -43.28% | -80.97% | -80.97% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | -$111.9M | -$367.1M | |
YoY Change | -57.98% | 51.44% | |
Common Stock | $0.00 | $1.000K | |
YoY Change | -100.0% | 0.0% | |
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $198.2M | $183.6M | $183.6M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $217.3M | $188.5M | $188.5M |
YoY Change | -29.9% | -41.46% | -41.46% |
Cashflow Statement
Concept | 2024 Q1 | 2023 Q4 | 2023 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | -$16.65M | -$22.92M | -$124.7M |
YoY Change | -30.44% | -6.83% | 23.29% |
Depreciation, Depletion And Amortization | $5.000K | $142.0K | $2.400M |
YoY Change | -99.29% | -79.18% | 2.04% |
Cash From Operating Activities | -$23.94M | -$45.88M | -$90.01M |
YoY Change | 13.59% | 104.54% | 2.28% |
INVESTING ACTIVITIES | |||
Capital Expenditures | $0.00 | $50.00K | $10.86M |
YoY Change | -100.0% | -95.1% | 64.63% |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | $18.00M | $47.13M | $237.2M |
YoY Change | -58.66% | 224.04% | -200.82% |
Cash From Investing Activities | $18.00M | $47.08M | $226.3M |
YoY Change | -58.3% | 248.14% | -193.58% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | |||
YoY Change | |||
Debt Paid & Issued, Net | |||
YoY Change | |||
Cash From Financing Activities | $171.3M | 66.00K | 190.0K |
YoY Change | -2140950.0% | -72.95% | -68.17% |
NET CHANGE | |||
Cash From Operating Activities | -$23.94M | -45.88M | -90.01M |
Cash From Investing Activities | $18.00M | 47.08M | 226.3M |
Cash From Financing Activities | $171.3M | 66.00K | 190.0K |
Net Change In Cash | $165.3M | 1.271M | 136.5M |
YoY Change | 648.75% | -114.67% | -141.47% |
FREE CASH FLOW | |||
Cash From Operating Activities | -$23.94M | -$45.88M | -$90.01M |
Capital Expenditures | $0.00 | $50.00K | $10.86M |
Free Cash Flow | -$23.94M | -$45.93M | -$100.9M |
YoY Change | 11.56% | 95.85% | 6.63% |
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|
57015159 | |
CY2023 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
57015159 | |
CY2022 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
54873675 | |
CY2022 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
54873675 | |
CY2021Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
384050000 | |
CY2022 | us-gaap |
Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
|
20000 | |
CY2022 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
656000 | |
CY2022 | grph |
Vesting Of Early Exercised Stock Options
VestingOfEarlyExercisedStockOptions
|
131000 | |
CY2022 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
13534000 | |
CY2022 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
-1048000 | |
CY2022 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-101052000 | |
CY2022Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
296291000 | |
CY2023 | us-gaap |
Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
|
100000 | |
CY2023 | us-gaap |
Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
|
157000 | |
CY2023 | grph |
Vesting Of Early Exercised Stock Options
VestingOfEarlyExercisedStockOptions
|
63000 | |
CY2023 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
10574000 | |
CY2023 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
1048000 | |
CY2023 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-124651000 | |
CY2023Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
183582000 | |
CY2023 | us-gaap |
Profit Loss
ProfitLoss
|
-124651000 | |
CY2022 | us-gaap |
Profit Loss
ProfitLoss
|
-101052000 | |
CY2023 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-1543000 | |
CY2022 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
1600000 | |
CY2023 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
2407000 | |
CY2022 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
2352000 | |
CY2023 | grph |
Non Cash Lease Expense
NonCashLeaseExpense
|
4289000 | |
CY2022 | grph |
Non Cash Lease Expense
NonCashLeaseExpense
|
5994000 | |
CY2023 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
10574000 | |
CY2022 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
13534000 | |
CY2023 | grph |
Gain On Asset Abandonment
GainOnAssetAbandonment
|
-1638000 | |
CY2022 | grph |
Gain On Asset Abandonment
GainOnAssetAbandonment
|
0 | |
CY2023 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
-71000 | |
CY2022 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
0 | |
CY2023 | us-gaap |
Other Asset Impairment Charges
OtherAssetImpairmentCharges
|
56621000 | |
CY2022 | us-gaap |
Other Asset Impairment Charges
OtherAssetImpairmentCharges
|
0 | |
CY2023 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
-5676000 | |
CY2022 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
3211000 | |
CY2023 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-2358000 | |
CY2022 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
194000 | |
CY2023 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
-2265000 | |
CY2022 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
1110000 | |
CY2023 | grph |
Increase Decrease In Accrued Research Costs
IncreaseDecreaseInAccruedResearchCosts
|
-720000 | |
CY2022 | grph |
Increase Decrease In Accrued Research Costs
IncreaseDecreaseInAccruedResearchCosts
|
87000 | |
CY2023 | grph |
Increase Decrease In Accrued Expenses And Other Current Liabilities And Other Liabilities
IncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilitiesAndOtherLiabilities
|
1806000 | |
CY2022 | grph |
Increase Decrease In Accrued Expenses And Other Current Liabilities And Other Liabilities
IncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilitiesAndOtherLiabilities
|
94000 | |
CY2023 | us-gaap |
Increase Decrease In Operating Lease Liability
IncreaseDecreaseInOperatingLeaseLiability
|
-41362000 | |
CY2022 | us-gaap |
Increase Decrease In Operating Lease Liability
IncreaseDecreaseInOperatingLeaseLiability
|
-5482000 | |
CY2023 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-90007000 | |
CY2022 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-87980000 | |
CY2023 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
10856000 | |
CY2022 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
6594000 | |
CY2023 | us-gaap |
Proceeds From Sale Of Other Property Plant And Equipment
ProceedsFromSaleOfOtherPropertyPlantAndEquipment
|
1904000 | |
CY2022 | us-gaap |
Proceeds From Sale Of Other Property Plant And Equipment
ProceedsFromSaleOfOtherPropertyPlantAndEquipment
|
0 | |
CY2023 | us-gaap |
Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
|
28129000 | |
CY2022 | us-gaap |
Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
|
405519000 | |
CY2023 | us-gaap |
Proceeds From Sale And Maturity Of Marketable Securities
ProceedsFromSaleAndMaturityOfMarketableSecurities
|
263427000 | |
CY2022 | us-gaap |
Proceeds From Sale And Maturity Of Marketable Securities
ProceedsFromSaleAndMaturityOfMarketableSecurities
|
170250000 | |
CY2023 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
226346000 | |
CY2022 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-241863000 | |
CY2023 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
100000 | |
CY2022 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
20000 | |
CY2023 | us-gaap |
Proceeds From Stock Plans
ProceedsFromStockPlans
|
157000 | |
CY2022 | us-gaap |
Proceeds From Stock Plans
ProceedsFromStockPlans
|
656000 | |
CY2023 | grph |
Repurchase Of Unvested Early Exercised Shares
RepurchaseOfUnvestedEarlyExercisedShares
|
67000 | |
CY2022 | grph |
Repurchase Of Unvested Early Exercised Shares
RepurchaseOfUnvestedEarlyExercisedShares
|
79000 | |
CY2023 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
190000 | |
CY2022 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
597000 | |
CY2023 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
136529000 | |
CY2022 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
-329246000 | |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
49446000 | |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
378692000 | |
CY2023Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
185975000 | |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
49446000 | |
CY2023Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
184259000 | |
CY2022Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
47730000 | |
CY2023Q4 | us-gaap |
Restricted Cash Current
RestrictedCashCurrent
|
1716000 | |
CY2022Q4 | us-gaap |
Restricted Cash Current
RestrictedCashCurrent
|
1716000 | |
CY2023Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
185975000 | |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
49446000 | |
CY2023 | grph |
Purchases Of Property And Equipment Included In Accounts Payable
PurchasesOfPropertyAndEquipmentIncludedInAccountsPayable
|
0 | |
CY2022 | grph |
Purchases Of Property And Equipment Included In Accounts Payable
PurchasesOfPropertyAndEquipmentIncludedInAccountsPayable
|
-36000 | |
CY2023 | grph |
Lessor Funded Lease Incentives Included In Property And Equipment
LessorFundedLeaseIncentivesIncludedInPropertyAndEquipment
|
7193000 | |
CY2022 | grph |
Lessor Funded Lease Incentives Included In Property And Equipment
LessorFundedLeaseIncentivesIncludedInPropertyAndEquipment
|
11920000 | |
CY2023 | grph |
Additions To Right Of Use Assets From New Operating Lease Liabilities
AdditionsToRightOfUseAssetsFromNewOperatingLeaseLiabilities
|
31974000 | |
CY2022 | grph |
Additions To Right Of Use Assets From New Operating Lease Liabilities
AdditionsToRightOfUseAssetsFromNewOperatingLeaseLiabilities
|
0 | |
CY2023 | grph |
Noncash Or Part Noncash Vesting Of Early Exercised Stock Options
NoncashOrPartNoncashVestingOfEarlyExercisedStockOptions
|
63000 | |
CY2022 | grph |
Noncash Or Part Noncash Vesting Of Early Exercised Stock Options
NoncashOrPartNoncashVestingOfEarlyExercisedStockOptions
|
131000 | |
CY2023 | grph |
Repurchase Of Unvested Early Exercised Shares Included In Accounts Payable
RepurchaseOfUnvestedEarlyExercisedSharesIncludedInAccountsPayable
|
0 | |
CY2022 | grph |
Repurchase Of Unvested Early Exercised Shares Included In Accounts Payable
RepurchaseOfUnvestedEarlyExercisedSharesIncludedInAccountsPayable
|
17000 | |
CY2023Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
-367100000 | |
CY2023Q4 | us-gaap |
Cash Cash Equivalents And Short Term Investments
CashCashEquivalentsAndShortTermInvestments
|
184300000 | |
CY2023 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Use of Estimates</span><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of expenses during the reporting period. On an ongoing basis, the Company evaluates estimates and assumptions, including but not limited to those related to the fair value of the marketable securities, stock-based compensation expense, accruals for research and development costs, lease assets and liabilities, the valuation of deferred tax assets, uncertain income tax positions, and impairment of long-lived assets. Management bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ materially from those estimates.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p> | |
CY2023 | us-gaap |
Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
|
<p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Concentration of Credit Risk</span><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Cash and cash equivalents are financial instruments that potentially subject the Company to concentrations of credit risk. Substantially all of the Company’s cash and cash equivalents are deposited in accounts with major financial institution and amounts may exceed federally insured limits. Management believes that the Company is not exposed to significant credit risk due to the financial strength of the depository institution in which the cash and cash equivalents are held. The Company has not experienced any losses on deposits of cash and cash equivalents.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p> | |
CY2023 | us-gaap |
Number Of Operating Segments
NumberOfOperatingSegments
|
1 | |
CY2023 | us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
1 | |
CY2023Q4 | us-gaap |
Restricted Cash
RestrictedCash
|
100000 | |
CY2022Q4 | us-gaap |
Restricted Cash
RestrictedCash
|
1700000 | |
CY2023Q4 | us-gaap |
Restricted Cash Equivalents
RestrictedCashEquivalents
|
1600000 | |
CY2023 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
54100000 | |
CY2022 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | |
CY2023 | grph |
Research And Development Credits To Offset Payroll Tax Expenses
ResearchAndDevelopmentCreditsToOffsetPayrollTaxExpenses
|
300000 | |
CY2022Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
236869000 | |
CY2022Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
28000 | |
CY2022Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
1076000 | |
CY2022Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
235821000 | |
CY2023Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
|
0 | |
CY2022 | us-gaap |
Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
|
0 | |
CY2023Q4 | us-gaap |
Supplies
Supplies
|
0 | |
CY2022Q4 | us-gaap |
Supplies
Supplies
|
2486000 | |
CY2023Q4 | us-gaap |
Prepaid Insurance
PrepaidInsurance
|
780000 | |
CY2022Q4 | us-gaap |
Prepaid Insurance
PrepaidInsurance
|
1343000 | |
CY2023Q4 | us-gaap |
Other Prepaid Expense Current
OtherPrepaidExpenseCurrent
|
1380000 | |
CY2022Q4 | us-gaap |
Other Prepaid Expense Current
OtherPrepaidExpenseCurrent
|
3307000 | |
CY2023Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
2160000 | |
CY2022Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
7136000 | |
CY2023Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
0 | |
CY2022Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
25837000 | |
CY2023Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
0 | |
CY2022Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
3207000 | |
CY2023Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
0 | |
CY2022Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
22630000 | |
CY2023 | us-gaap |
Depreciation
Depreciation
|
2400000 | |
CY2022 | us-gaap |
Depreciation
Depreciation
|
2400000 | |
CY2023Q4 | us-gaap |
Accrued Professional Fees Current
AccruedProfessionalFeesCurrent
|
1029000 | |
CY2022Q4 | us-gaap |
Accrued Professional Fees Current
AccruedProfessionalFeesCurrent
|
367000 | |
CY2023Q4 | grph |
Accrued Early Exercise Liability
AccruedEarlyExerciseLiability
|
21000 | |
CY2022Q4 | grph |
Accrued Early Exercise Liability
AccruedEarlyExerciseLiability
|
150000 | |
CY2023Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
143000 | |
CY2022Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
1354000 | |
CY2023Q4 | us-gaap |
Accrued Employee Benefits Current
AccruedEmployeeBenefitsCurrent
|
1535000 | |
CY2022Q4 | us-gaap |
Accrued Employee Benefits Current
AccruedEmployeeBenefitsCurrent
|
0 | |
CY2023Q4 | grph |
Accrued Expenses And Other Current Liabilities
AccruedExpensesAndOtherCurrentLiabilities
|
2728000 | |
CY2022Q4 | grph |
Accrued Expenses And Other Current Liabilities
AccruedExpensesAndOtherCurrentLiabilities
|
1871000 | |
CY2024 | grph |
Percentage Of Equity Interest On Outstanding Shares
PercentageOfEquityInterestOnOutstandingShares
|
0.20 | |
CY2023 | grph |
Amount Of Equity Interest On Outstanding Shares
AmountOfEquityInterestOnOutstandingShares
|
0 | |
CY2023Q4 | grph |
Accrued Termination And Cancellation Charges
AccruedTerminationAndCancellationCharges
|
0 | |
CY2022Q4 | grph |
Accrued Termination And Cancellation Charges
AccruedTerminationAndCancellationCharges
|
0 | |
CY2023Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
300000 | |
CY2023Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
100000 | |
CY2023Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P15M | |
CY2022Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P19M | |
CY2023Q4 | grph |
Lessee Operating Lease Weighted Average Incremental Borrowing Rate
LesseeOperatingLeaseWeightedAverageIncrementalBorrowingRate
|
0.09 | |
CY2022Q4 | grph |
Lessee Operating Lease Weighted Average Incremental Borrowing Rate
LesseeOperatingLeaseWeightedAverageIncrementalBorrowingRate
|
0.085 | |
CY2023Q4 | grph |
Prepayments Lease Amendment
PrepaymentsLeaseAmendment
|
15900000 | |
CY2023Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
400000 | |
CY2023Q4 | us-gaap |
Contractual Obligation Due In Next Twelve Months
ContractualObligationDueInNextTwelveMonths
|
0 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
304000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
78000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
382000 | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
20000 | |
CY2023Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
362000 | |
CY2023 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
7300000 | |
CY2022 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
6700000 | |
CY2023 | us-gaap |
Variable Lease Cost
VariableLeaseCost
|
2200000 | |
CY2022 | us-gaap |
Variable Lease Cost
VariableLeaseCost
|
1300000 | |
CY2023 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
44123000 | |
CY2023Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
300000000 | |
CY2023Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
300000000 | |
CY2023Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.00001 | |
CY2021Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.00001 | |
CY2023 | us-gaap |
Common Stock Voting Rights
CommonStockVotingRights
|
one | |
CY2023Q4 | us-gaap |
Common Stock Capital Shares Reserved For Future Issuance
CommonStockCapitalSharesReservedForFutureIssuance
|
17428919 | |
CY2022Q4 | us-gaap |
Common Stock Capital Shares Reserved For Future Issuance
CommonStockCapitalSharesReservedForFutureIssuance
|
13893161 | |
CY2023 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Description
ShareBasedCompensationArrangementByShareBasedPaymentAwardDescription
|
The shares of the Company’s common stock issued to its founders for their services as an employee, advisor, or consultant vest monthly over four years with one year cliff from the vesting commencement date. | |
CY2023 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1
ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
|
P4Y | |
CY2023 | grph |
Share Based Compensation Arrangement By Share Based Payment Award Award Cliff Vesting Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardCliffVestingPeriod
|
P1Y | |
CY2020Q2 | grph |
Aggregate Common Stock Vested
AggregateCommonStockVested
|
912212 | |
CY2020Q1 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
7273848 | |
CY2022Q1 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
|
564000 | |
CY2023Q1 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
|
564000 | |
CY2022 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
1.56 | |
CY2023 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
100000 | |
CY2022 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
200000 | |
CY2023 | grph |
Early Exercise Of Stock Options Repurchase Right Lapse Period
EarlyExerciseOfStockOptionsRepurchaseRightLapsePeriod
|
P180D | |
CY2023 | grph |
Stock Issued During Period Shares Stock Options Exercised And Repurchased
StockIssuedDuringPeriodSharesStockOptionsExercisedAndRepurchased
|
227792 | |
CY2022 | grph |
Stock Issued During Period Shares Stock Options Exercised And Repurchased
StockIssuedDuringPeriodSharesStockOptionsExercisedAndRepurchased
|
189414 | |
CY2023Q4 | grph |
Share Based Compensation Arrangement By Share Based Payment Award Remained Subject To Right Of Repurchase Of Early Exercised Stock Options
ShareBasedCompensationArrangementByShareBasedPaymentAwardRemainedSubjectToRightOfRepurchaseOfEarlyExercisedStockOptions
|
68868 | |
CY2022Q4 | grph |
Share Based Compensation Arrangement By Share Based Payment Award Remained Subject To Right Of Repurchase Of Early Exercised Stock Options
ShareBasedCompensationArrangementByShareBasedPaymentAwardRemainedSubjectToRightOfRepurchaseOfEarlyExercisedStockOptions
|
554695 | |
CY2023 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
10574000 | |
CY2022 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
13534000 | |
CY2023 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
10574000 | |
CY2022 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
13534000 | |
CY2023 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-124651000 | |
CY2022 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-101052000 | |
CY2023 | us-gaap |
Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
|
58046553 | |
CY2022 | us-gaap |
Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
|
58111437 | |
CY2023 | grph |
Weighted Average Unvested Restricted Shares And Shares Subject To Repurchase Or Cancellation
WeightedAverageUnvestedRestrictedSharesAndSharesSubjectToRepurchaseOrCancellation
|
1031394 | |
CY2022 | grph |
Weighted Average Unvested Restricted Shares And Shares Subject To Repurchase Or Cancellation
WeightedAverageUnvestedRestrictedSharesAndSharesSubjectToRepurchaseOrCancellation
|
3237762 | |
CY2023 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
57015159 | |
CY2023 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
57015159 | |
CY2022 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
54873675 | |
CY2022 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
54873675 | |
CY2023 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-2.19 | |
CY2023 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-2.19 | |
CY2022 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-1.84 | |
CY2022 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-1.84 | |
CY2023 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
5942040 | |
CY2022 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
10690909 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
3000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
3000 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2022 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.0101 | |
CY2022 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.011 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.0006 | |
CY2022 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.0069 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
|
-0.01 | |
CY2022 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
|
-0.0111 | |
CY2023 | grph |
Effective Income Tax Rate Reconciliation Transaction Costs
EffectiveIncomeTaxRateReconciliationTransactionCosts
|
-0.0101 | |
CY2022 | grph |
Effective Income Tax Rate Reconciliation Transaction Costs
EffectiveIncomeTaxRateReconciliationTransactionCosts
|
0 | |
CY2023 | grph |
Effective Income Tax Rate Reconciliation Lease Modification
EffectiveIncomeTaxRateReconciliationLeaseModification
|
0.0327 | |
CY2022 | grph |
Effective Income Tax Rate Reconciliation Lease Modification
EffectiveIncomeTaxRateReconciliationLeaseModification
|
0 | |
CY2023 | grph |
Effective Income Tax Rate Reconciliation Interest Expense
EffectiveIncomeTaxRateReconciliationInterestExpense
|
0 | |
CY2022 | grph |
Effective Income Tax Rate Reconciliation Interest Expense
EffectiveIncomeTaxRateReconciliationInterestExpense
|
0 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
|
0.0152 | |
CY2022 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
|
-0.0097 | |
CY2023 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-0.2369 | |
CY2022 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-0.2155 | |
CY2023 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0 | |
CY2022 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
30820000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
15940000 | |
CY2023Q4 | grph |
Deferred Tax Assets Tax Credit Carryforwards Capitalized Research And Development Costs
DeferredTaxAssetsTaxCreditCarryforwardsCapitalizedResearchAndDevelopmentCosts
|
14493000 | |
CY2022Q4 | grph |
Deferred Tax Assets Tax Credit Carryforwards Capitalized Research And Development Costs
DeferredTaxAssetsTaxCreditCarryforwardsCapitalizedResearchAndDevelopmentCosts
|
13815000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards General Business
DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness
|
7201000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards General Business
DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness
|
5699000 | |
CY2023Q4 | grph |
Deferred Tax Assets Leasing Arrangements
DeferredTaxAssetsLeasingArrangements
|
88000 | |
CY2022Q4 | grph |
Deferred Tax Assets Leasing Arrangements
DeferredTaxAssetsLeasingArrangements
|
1220000 | |
CY2023Q4 | grph |
Gain Loss On Termination Of Lease Cost
GainLossOnTerminationOfLeaseCost
|
6621 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
2017000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
1703000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
|
295000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
|
735000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Property Plant And Equipment
DeferredTaxAssetsPropertyPlantAndEquipment
|
6161000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Property Plant And Equipment
DeferredTaxAssetsPropertyPlantAndEquipment
|
170000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
67699000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
39285000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
67626000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
38110000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
73 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
1175 | |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
0 | |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
0 | |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Leasing Arrangements
DeferredTaxLiabilitiesLeasingArrangements
|
73000 | |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Leasing Arrangements
DeferredTaxLiabilitiesLeasingArrangements
|
1175000 | |
CY2023Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
73000 | |
CY2022Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
1175000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
38110000 | |
CY2021Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
16332000 | |
CY2023 | grph |
Valuation Allowance Increases Recorded To Income Tax Provision
ValuationAllowanceIncreasesRecordedToIncomeTaxProvision
|
29516000 | |
CY2022 | grph |
Valuation Allowance Increases Recorded To Income Tax Provision
ValuationAllowanceIncreasesRecordedToIncomeTaxProvision
|
21778000 | |
CY2023Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
67626000 | |
CY2022Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
38110000 | |
CY2023 | us-gaap |
Income Tax Examination Description
IncomeTaxExaminationDescription
|
The Company’s U.S. federal and state income tax returns are generally subject to tax examinations for the tax years from inception through December 31, 2022. There are currently no pending income tax examinations. To the extent the Company has tax attribute carryforwards, the tax years in which the attribute was generated may still be adjusted upon examination by the Internal Revenue Service and state tax authorities to the extent utilized in a future period. | |
CY2022Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2701000 | |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1407000 | |
CY2023 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
899000 | |
CY2022 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
1862000 | |
CY2023 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
42000 | |
CY2022 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
568000 | |
CY2023Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
3558000 | |
CY2022Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2701000 | |
CY2023Q4 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
|
0 | |
CY2023 | us-gaap |
Defined Benefit Plan Special Termination Benefits
DefinedBenefitPlanSpecialTerminationBenefits
|
1000000 | |
CY2023 | grph |
Defined Benefit Plan Special Termination Benefits Paid
DefinedBenefitPlanSpecialTerminationBenefitsPaid
|
600000 | |
CY2022Q4 | us-gaap |
Accrued Employee Benefits Current
AccruedEmployeeBenefitsCurrent
|
0 | |
CY2023 | grph |
Severance Costs Incurred
SeveranceCostsIncurred
|
8100000 | |
CY2023 | us-gaap |
Severance Costs1
SeveranceCosts1
|
-6565000 | |
CY2023Q4 | grph |
Accrued Employee Termination Benefits Ending Balance
AccruedEmployeeTerminationBenefitsEndingBalance
|
1535000 | |
CY2023 | grph |
Employees Retention Bonus Payable
EmployeesRetentionBonusPayable
|
4200000 | |
CY2023 | grph |
Employees Retention Bonus Amount
EmployeesRetentionBonusAmount
|
3700000 | |
CY2023 | us-gaap |
Operating Lease Impairment Loss
OperatingLeaseImpairmentLoss
|
46900000 | |
CY2023Q4 | ecd |
Rule10b51 Arr Adopted Flag
Rule10b51ArrAdoptedFlag
|
false | |
CY2023Q4 | ecd |
Non Rule10b51 Arr Adopted Flag
NonRule10b51ArrAdoptedFlag
|
false | |
CY2023Q4 | grph |
Rule10 B51 Arrangement Modified Flag
Rule10B51ArrangementModifiedFlag
|
false | |
CY2023Q4 | grph |
Non Rule10 B51 Arrangement Modified Flag
NonRule10B51ArrangementModifiedFlag
|
false | |
CY2023Q4 | ecd |
Rule10b51 Arr Trmntd Flag
Rule10b51ArrTrmntdFlag
|
false | |
CY2023Q4 | ecd |
Non Rule10b51 Arr Trmntd Flag
NonRule10b51ArrTrmntdFlag
|
false | |
CY2023 | dei |
Auditor Name
AuditorName
|
Deloitte & Touche LLP | |
CY2023 | dei |
Auditor Location
AuditorLocation
|
San Francisco, CA | |
CY2023 | dei |
Auditor Firm
AuditorFirmId
|
34 |