2019 Q1 Form 10-K Financial Statement
#000156459019010253 Filed on April 01, 2019
Income Statement
Concept | 2019 Q1 | 2018 | 2017 Q4 |
---|---|---|---|
Revenue | $8.629M | $38.42M | $4.040M |
YoY Change | 48.96% | -25.75% | |
Cost Of Revenue | |||
YoY Change | |||
Gross Profit | |||
YoY Change | |||
Gross Profit Margin | |||
Selling, General & Admin | $7.720M | $21.38M | $4.070M |
YoY Change | 75.06% | 30.6% | |
% of Gross Profit | |||
Research & Development | $15.18M | $54.26M | $15.14M |
YoY Change | 16.04% | -0.69% | |
% of Gross Profit | |||
Depreciation & Amortization | $1.137M | $4.539M | $1.190M |
YoY Change | -2.15% | -9.04% | |
% of Gross Profit | |||
Operating Expenses | $22.90M | $75.64M | $19.21M |
YoY Change | 30.86% | 6.52% | |
Operating Profit | -$14.27M | -$37.22M | |
YoY Change | 21.9% | 93.15% | |
Interest Expense | $20.00K | $1.623M | -$300.0K |
YoY Change | -105.88% | 165.2% | |
% of Operating Profit | |||
Other Income/Expense, Net | $1.913M | $120.0K | |
YoY Change | -2584.42% | ||
Pretax Income | -$14.25M | -$35.32M | -$15.34M |
YoY Change | 18.26% | 79.38% | |
Income Tax | $0.00 | ||
% Of Pretax Income | |||
Net Earnings | -$14.25M | -$35.32M | -$15.34M |
YoY Change | 18.3% | 79.38% | |
Net Earnings / Revenue | -165.14% | -91.93% | -379.8% |
Basic Earnings Per Share | |||
Diluted Earnings Per Share | -$623.1K | -$1.546M | -$692.2K |
COMMON SHARES | |||
Basic Shares Outstanding | 22.93M | ||
Diluted Shares Outstanding |
Balance Sheet
Concept | 2019 Q1 | 2018 | 2017 Q4 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $170.6M | $204.5M | |
YoY Change | 829.55% | ||
Cash & Equivalents | $26.62M | $125.3M | $22.02M |
Short-Term Investments | $144.0M | $79.20M | |
Other Short-Term Assets | $2.600M | $3.000M | |
YoY Change | 50.0% | ||
Inventory | |||
Prepaid Expenses | |||
Receivables | $3.300M | $2.500M | $1.624M |
Other Receivables | $0.00 | $0.00 | |
Total Short-Term Assets | $176.5M | $209.9M | $25.63M |
YoY Change | 719.92% | ||
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $9.900M | $10.90M | $14.00M |
YoY Change | -22.14% | ||
Goodwill | |||
YoY Change | |||
Intangibles | |||
YoY Change | |||
Long-Term Investments | $13.70M | ||
YoY Change | |||
Other Assets | $2.235M | $2.300M | $1.128M |
YoY Change | 109.09% | ||
Total Long-Term Assets | $25.96M | $13.20M | $15.14M |
YoY Change | -13.16% | ||
TOTAL ASSETS | |||
Total Short-Term Assets | $176.5M | $209.9M | $25.63M |
Total Long-Term Assets | $25.96M | $13.20M | $15.14M |
Total Assets | $202.5M | $223.1M | $40.77M |
YoY Change | 446.81% | ||
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $3.395M | $3.100M | $2.902M |
YoY Change | 6.9% | ||
Accrued Expenses | $2.502M | $6.200M | $3.639M |
YoY Change | 72.22% | ||
Deferred Revenue | $19.02M | $10.71M | |
YoY Change | |||
Short-Term Debt | $0.00 | $0.00 | |
YoY Change | |||
Long-Term Debt Due | $5.800M | $4.700M | |
YoY Change | -67.81% | ||
Total Short-Term Liabilities | $31.13M | $36.40M | $31.96M |
YoY Change | 13.75% | ||
LONG-TERM LIABILITIES | |||
Long-Term Debt | $8.500M | $10.00M | |
YoY Change | 488.24% | ||
Other Long-Term Liabilities | $32.10M | $45.20M | $14.00K |
YoY Change | 232.35% | ||
Total Long-Term Liabilities | $40.60M | $55.20M | $14.00K |
YoY Change | 260.78% | ||
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $31.13M | $36.40M | $31.96M |
Total Long-Term Liabilities | $40.60M | $55.20M | $14.00K |
Total Liabilities | $71.70M | $91.60M | $47.27M |
YoY Change | 93.66% | ||
SHAREHOLDERS EQUITY | |||
Retained Earnings | -$154.3M | -$115.0M | |
YoY Change | |||
Common Stock | $284.9M | $6.218M | |
YoY Change | |||
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $130.7M | $131.5M | -$109.0M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $202.5M | $223.1M | $40.77M |
YoY Change | 446.81% |
Cashflow Statement
Concept | 2019 Q1 | 2018 | 2017 Q4 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | -$14.25M | -$35.32M | -$15.34M |
YoY Change | 18.3% | 79.38% | |
Depreciation, Depletion And Amortization | $1.137M | $4.539M | $1.190M |
YoY Change | -2.15% | -9.04% | |
Cash From Operating Activities | -$20.15M | $12.68M | -$4.840M |
YoY Change | 34.21% | -134.21% | |
INVESTING ACTIVITIES | |||
Capital Expenditures | $276.0K | $1.557M | -$660.0K |
YoY Change | -24.18% | -53.05% | |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | -$77.80M | -$78.63M | $2.290M |
YoY Change | -318.9% | ||
Cash From Investing Activities | -$78.08M | -$80.19M | $1.630M |
YoY Change | 21350.27% | -345.97% | |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | |||
YoY Change | |||
Debt Paid & Issued, Net | |||
YoY Change | |||
Cash From Financing Activities | -458.0K | 170.8M | -180.0K |
YoY Change | 3171.43% | 1066.72% | |
NET CHANGE | |||
Cash From Operating Activities | -20.15M | 12.68M | -4.840M |
Cash From Investing Activities | -78.08M | -80.19M | 1.630M |
Cash From Financing Activities | -458.0K | 170.8M | -180.0K |
Net Change In Cash | -98.68M | 103.3M | -3.390M |
YoY Change | 541.29% | 915.82% | |
FREE CASH FLOW | |||
Cash From Operating Activities | -$20.15M | $12.68M | -$4.840M |
Capital Expenditures | $276.0K | $1.557M | -$660.0K |
Free Cash Flow | -$20.42M | $11.13M | -$4.180M |
YoY Change | 32.83% | -127.55% |
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527000 | |
CY2017 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-106000 | |
CY2016 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-168000 | |
CY2018 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
2872000 | |
CY2017 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1391000 | |
CY2016 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
968000 | |
CY2018 | stro |
Revaluation Of Redeemable Convertible Preferred Stock Warrant Liability
RevaluationOfRedeemableConvertiblePreferredStockWarrantLiability
|
-973000 | |
CY2017 | stro |
Revaluation Of Redeemable Convertible Preferred Stock Warrant Liability
RevaluationOfRedeemableConvertiblePreferredStockWarrantLiability
|
186000 | |
CY2016 | stro |
Revaluation Of Redeemable Convertible Preferred Stock Warrant Liability
RevaluationOfRedeemableConvertiblePreferredStockWarrantLiability
|
-88000 | |
CY2018 | stro |
Reduction Of The Liability Attributable To A Research Development And Commercialization Agreement
ReductionOfTheLiabilityAttributableToAResearchDevelopmentAndCommercializationAgreement
|
854000 | |
CY2017 | stro |
Reduction Of The Liability Attributable To A Research Development And Commercialization Agreement
ReductionOfTheLiabilityAttributableToAResearchDevelopmentAndCommercializationAgreement
|
0 | |
CY2016 | stro |
Reduction Of The Liability Attributable To A Research Development And Commercialization Agreement
ReductionOfTheLiabilityAttributableToAResearchDevelopmentAndCommercializationAgreement
|
0 | |
CY2018 | us-gaap |
Accretion Expense
AccretionExpense
|
162000 | |
CY2017 | us-gaap |
Accretion Expense
AccretionExpense
|
133000 | |
CY2016 | us-gaap |
Accretion Expense
AccretionExpense
|
0 | |
CY2018 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-175000 | |
CY2017 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
30000 | |
CY2016 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-98000 | |
CY2018 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | |
CY2017 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
2742000 | |
CY2016 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | |
CY2018 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
865000 | |
CY2017 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
1047000 | |
CY2018 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
2220000 | |
CY2017 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
354000 | |
CY2016 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
371000 | |
CY2018 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
209000 | |
CY2017 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-473000 | |
CY2016 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
874000 | |
CY2018 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
2578000 | |
CY2016 | us-gaap |
Increase Decrease In Contract With Customer Liability
IncreaseDecreaseInContractWithCustomerLiability
|
-23120000 | |
CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-37073000 | |
CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-13153000 | |
CY2018 | us-gaap |
Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
|
81463000 | |
CY2017 | us-gaap |
Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
|
14220000 | |
CY2018 | stro |
Proceeds From Maturities Of Marketable Securities
ProceedsFromMaturitiesOfMarketableSecurities
|
2750000 | |
CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value Including Discontinued Operations
CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations
|
22035000 | |
CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value Including Discontinued Operations
CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations
|
11868000 | |
CY2018Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
195396000 | |
CY2017 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
451000 | |
CY2016 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
1238000 | |
CY2018 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
551000 | |
CY2017 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
0 | |
CY2016 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
-18000 | |
CY2018 | us-gaap |
Increase Decrease In Deferred Charges
IncreaseDecreaseInDeferredCharges
|
-48000 | |
CY2017 | us-gaap |
Increase Decrease In Deferred Charges
IncreaseDecreaseInDeferredCharges
|
-86000 | |
CY2016 | us-gaap |
Increase Decrease In Deferred Charges
IncreaseDecreaseInDeferredCharges
|
95000 | |
CY2018 | us-gaap |
Increase Decrease In Contract With Customer Liability
IncreaseDecreaseInContractWithCustomerLiability
|
42305000 | |
CY2017 | us-gaap |
Increase Decrease In Contract With Customer Liability
IncreaseDecreaseInContractWithCustomerLiability
|
-25566000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
12683000 | |
CY2016 | us-gaap |
Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
|
52304000 | |
CY2017 | stro |
Proceeds From Maturities Of Marketable Securities
ProceedsFromMaturitiesOfMarketableSecurities
|
34850000 | |
CY2016 | stro |
Proceeds From Maturities Of Marketable Securities
ProceedsFromMaturitiesOfMarketableSecurities
|
57773000 | |
CY2018 | stro |
Proceeds From Sales Of Marketable Securities
ProceedsFromSalesOfMarketableSecurities
|
0 | |
CY2017 | stro |
Proceeds From Sales Of Marketable Securities
ProceedsFromSalesOfMarketableSecurities
|
15208000 | |
CY2016 | stro |
Proceeds From Sales Of Marketable Securities
ProceedsFromSalesOfMarketableSecurities
|
8500000 | |
CY2018 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
1557000 | |
CY2017 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
3316000 | |
CY2016 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
4394000 | |
CY2018 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
0 | |
CY2017 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
0 | |
CY2016 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
16000 | |
CY2017 | stro |
Proceeds From Exercise Of Options For Sutrovax Shares
ProceedsFromExerciseOfOptionsForSutrovaxShares
|
80000 | |
CY2016 | stro |
Proceeds From Exercise Of Options For Sutrovax Shares
ProceedsFromExerciseOfOptionsForSutrovaxShares
|
0 | |
CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
32602000 | |
CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
9591000 | |
CY2018 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | |
CY2017 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
15000000 | |
CY2016 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | |
CY2018 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
0 | |
CY2017 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
170000 | |
CY2016 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
0 | |
CY2016 | stro |
Proceeds Interest From Payment Of Note Receivable By Stockholder
ProceedsInterestFromPaymentOfNoteReceivableByStockholder
|
-7000 | |
CY2018 | us-gaap |
Proceeds From Issuance Of Redeemable Convertible Preferred Stock
ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock
|
84739000 | |
CY2017 | us-gaap |
Proceeds From Issuance Of Redeemable Convertible Preferred Stock
ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock
|
0 | |
CY2016 | us-gaap |
Proceeds From Issuance Of Redeemable Convertible Preferred Stock
ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock
|
0 | |
CY2018 | us-gaap |
Proceeds From Issuance Initial Public Offering
ProceedsFromIssuanceInitialPublicOffering
|
74436000 | |
CY2017 | us-gaap |
Proceeds From Issuance Initial Public Offering
ProceedsFromIssuanceInitialPublicOffering
|
0 | |
CY2016 | us-gaap |
Proceeds From Issuance Initial Public Offering
ProceedsFromIssuanceInitialPublicOffering
|
0 | |
CY2018 | us-gaap |
Payments Of Financing Costs
PaymentsOfFinancingCosts
|
0 | |
CY2017 | us-gaap |
Payments Of Financing Costs
PaymentsOfFinancingCosts
|
286000 | |
CY2016 | us-gaap |
Payments Of Financing Costs
PaymentsOfFinancingCosts
|
0 | |
CY2018 | us-gaap |
Proceeds From Issuance Of Private Placement
ProceedsFromIssuanceOfPrivatePlacement
|
10000000 | |
CY2017 | us-gaap |
Proceeds From Issuance Of Private Placement
ProceedsFromIssuanceOfPrivatePlacement
|
0 | |
CY2016 | us-gaap |
Proceeds From Issuance Of Private Placement
ProceedsFromIssuanceOfPrivatePlacement
|
0 | |
CY2018 | stro |
Proceeds From Preferred Stock Warrants Exercises
ProceedsFromPreferredStockWarrantsExercises
|
268000 | |
CY2017 | stro |
Proceeds From Preferred Stock Warrants Exercises
ProceedsFromPreferredStockWarrantsExercises
|
0 | |
CY2016 | stro |
Proceeds From Preferred Stock Warrants Exercises
ProceedsFromPreferredStockWarrantsExercises
|
0 | |
CY2018 | stro |
Proceeds From Exercise Of Common Stock Options And Common Stock Warrants
ProceedsFromExerciseOfCommonStockOptionsAndCommonStockWarrants
|
134000 | |
CY2017 | stro |
Proceeds From Exercise Of Common Stock Options And Common Stock Warrants
ProceedsFromExerciseOfCommonStockOptionsAndCommonStockWarrants
|
95000 | |
CY2016 | stro |
Proceeds From Exercise Of Common Stock Options And Common Stock Warrants
ProceedsFromExerciseOfCommonStockOptionsAndCommonStockWarrants
|
184000 | |
CY2018 | stro |
Proceeds From A Research Development And Commercialization Agreement
ProceedsFromAResearchDevelopmentAndCommercializationAgreement
|
1000000 | |
CY2017 | stro |
Proceeds From A Research Development And Commercialization Agreement
ProceedsFromAResearchDevelopmentAndCommercializationAgreement
|
0 | |
CY2016 | stro |
Proceeds From A Research Development And Commercialization Agreement
ProceedsFromAResearchDevelopmentAndCommercializationAgreement
|
0 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
170785000 | |
CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
14638000 | |
CY2018Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
29296000 | |
CY2016Q4 | us-gaap |
Restricted Cash Noncurrent
RestrictedCashNoncurrent
|
275000 | |
CY2017Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
22035000 | |
CY2016Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
11868000 | |
CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
177000 | |
CY2018 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
103278000 | |
CY2016 | us-gaap |
Interest Paid Net
InterestPaidNet
|
0 | |
CY2018 | stro |
Vesting Of Early Exercised Shares
VestingOfEarlyExercisedShares
|
8000 | |
CY2017 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
10167000 | |
CY2016 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-3385000 | |
CY2017 | stro |
Vesting Of Early Exercised Shares
VestingOfEarlyExercisedShares
|
86000 | |
CY2016 | stro |
Vesting Of Early Exercised Shares
VestingOfEarlyExercisedShares
|
116000 | |
CY2018 | stro |
Conversion Of Redeemable Convertible Preferred Stock And Warrants Into Common Stock Upon Ipo Net Of Issuance Costs
ConversionOfRedeemableConvertiblePreferredStockAndWarrantsIntoCommonStockUponIPONetOfIssuanceCosts
|
187244000 | |
CY2017 | stro |
Conversion Of Redeemable Convertible Preferred Stock And Warrants Into Common Stock Upon Ipo Net Of Issuance Costs
ConversionOfRedeemableConvertiblePreferredStockAndWarrantsIntoCommonStockUponIPONetOfIssuanceCosts
|
0 | |
CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value Including Discontinued Operations
CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations
|
15253000 | |
CY2018Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value Including Discontinued Operations
CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations
|
125313000 | |
CY2016 | stro |
Conversion Of Redeemable Convertible Preferred Stock And Warrants Into Common Stock Upon Ipo Net Of Issuance Costs
ConversionOfRedeemableConvertiblePreferredStockAndWarrantsIntoCommonStockUponIPONetOfIssuanceCosts
|
0 | |
CY2018 | us-gaap |
Interest Paid Net
InterestPaidNet
|
1275000 | |
CY2017 | us-gaap |
Interest Paid Net
InterestPaidNet
|
479000 | |
CY2018 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
205000 | |
CY2018 | stro |
Reclassification Of Redeemable Convertible Preferred Stock Warrant Liability To Equity
ReclassificationOfRedeemableConvertiblePreferredStockWarrantLiabilityToEquity
|
734000 | |
CY2017 | stro |
Reclassification Of Redeemable Convertible Preferred Stock Warrant Liability To Equity
ReclassificationOfRedeemableConvertiblePreferredStockWarrantLiabilityToEquity
|
0 | |
CY2016 | stro |
Reclassification Of Redeemable Convertible Preferred Stock Warrant Liability To Equity
ReclassificationOfRedeemableConvertiblePreferredStockWarrantLiabilityToEquity
|
0 | |
CY2017 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
255000 | |
CY2016 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
532000 | |
CY2018 | stro |
Deferred Initial Public Offering Costs Included In Accounts Payable
DeferredInitialPublicOfferingCostsIncludedInAccountsPayable
|
0 | |
CY2017 | stro |
Deferred Initial Public Offering Costs Included In Accounts Payable
DeferredInitialPublicOfferingCostsIncludedInAccountsPayable
|
259000 | |
CY2016 | stro |
Deferred Initial Public Offering Costs Included In Accounts Payable
DeferredInitialPublicOfferingCostsIncludedInAccountsPayable
|
0 | |
CY2018 | us-gaap |
Nature Of Operations
NatureOfOperations
|
<p style="margin-top:13pt;margin-bottom:0pt;text-indent:2.86%;font-weight:bold;font-family:Arial;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">1.Organization and Principal Activities</p> <p style="margin-top:6pt;margin-bottom:0pt;text-indent:2.86%;font-weight:bold;font-style:italic;font-family:Arial;font-size:10pt;text-transform:none;font-variant: normal;">Description of Business </p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Sutro Biopharma, Inc. (the “Company”) is a clinical stage drug discovery, development and manufacturing company focused on leveraging its integrated cell-free protein synthesis and site-specific conjugation platform, XpressCF™, to create a broad variety of optimally designed, next-generation protein therapeutics for cancer and autoimmune disorders. The Company was incorporated on April 21, 2003, and was formerly known as Fundamental Applied Biology, Inc. The Company is headquartered in South San Francisco, California. </p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company operates in one business segment, the development of biopharmaceutical products. </p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:2.86%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Arial;text-transform:none;font-variant: normal;">Initial Public Offering</p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">On September 26, 2018, the Company’s registration statements on Form S-1 (File No. 333-227103 and 333-227548) relating to its initial public offering (“IPO”) of its common stock were declared effective by the Securities and Exchange Commission (“SEC”) and the shares of its common stock began trading on the Nasdaq Global Market on September 27, 2018. The public offering price of the shares sold in the IPO was $15.00 per share. The IPO closed on October 1, 2018, pursuant to which the Company sold 5,667,000 shares of common stock, for gross proceeds of approximately $85.0 million. The Company received net proceeds from the IPO of approximately $74.4 million, after underwriting discounts, commissions and estimated offering expenses. In addition to the shares of common stock sold in the IPO, the Company concurrently sold in a private placement to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA (“Merck”), 666,666 shares of common stock at the IPO offering price of $15.00 per share, for proceeds of approximately $10.0 million. </p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:3.64%;color:#000000;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Immediately prior to the completion of the IPO on October 1, 2018, all outstanding shares of redeemable convertible preferred stock were converted into 16,028,462 shares of common stock. Subsequent to the closing of the IPO, there were no shares of redeemable convertible preferred stock outstanding. In addition, <font style="color:#000000;">subsequent to the closing of the IPO, all of the outstanding redeemable convertible preferred stock warrants converted into common stock warrants resulting in the reclassification of the redeemable convertible preferred stock warrant liability to stockholder’s equity at its then fair value.</font></p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:2.86%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Arial;text-transform:none;font-variant: normal;">Reverse Stock Split</p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">On September 14, 2018, the Company effected a reverse split of all shares of its common stock at a ratio of 36.3-for-1. Upon the effectiveness of the reverse stock split, (i) all shares of outstanding common stock were adjusted; (ii) the number of shares of common stock for which each outstanding option to purchase common stock is exercisable were adjusted; (iii) the exercise price of each outstanding option to purchase common stock were adjusted; (iv) the conversion ratio for each share of outstanding redeemable convertible preferred stock which is convertible into the Company’s common stock was proportionately reduced; (v) the number of shares of common stock for which each outstanding warrant to purchase common stock is exercisable was proportionally decreased; (vi) the conversion ratio for each outstanding warrant to purchase redeemable convertible preferred stock which is convertible into warrants to purchase the Company’s common stock after the offering was proportionally decreased; and (vii) the exercise price of each outstanding warrant was proportionally increased. All of the outstanding common stock share numbers (including shares of common stock subject to the Company’s options, as converted for the outstanding redeemable convertible preferred stock shares and warrants), share prices, exercise prices and per share amounts contained in the financial statements have been retroactively adjusted in the financial statements to reflect this reverse stock split for all periods presented. The par value per share and the authorized number of shares of common stock and redeemable convertible preferred stock were not adjusted as a result of the reverse stock split. <font style="font-size:12pt;">    </font> <font style="font-size:12pt;">   </font></p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:2.86%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Arial;text-transform:none;font-variant: normal;">Series E Redeemable Convertible Preferred Stock Split </p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">In July 2018, the Company’s board of directors approved an amendment to the Company’s amended and restated certificate of incorporation to effect a 1-for-1.1940912491 split (“Split”) of shares of the Company’s Series E redeemable convertible preferred stock, which was effected on July 26, 2018. The par value and authorized shares of redeemable convertible preferred stock and the other outstanding shares of redeemable convertible preferred stock were not adjusted as a result of the Split. All of the outstanding Series E redeemable convertible preferred shares and per share information included in the accompanying financial statements have been adjusted to reflect the Split and were converted to shares of common stock upon the closing of the Company’s initial public offering on October 1, 2018.</p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:2.86%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Arial;text-transform:none;font-variant: normal;">Liquidity </p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company has incurred significant losses, except for the year ended December 31, 2016, and has negative cash flows from operations. As of December 31, 2018, there was an accumulated deficit of $150.3 million. Management expects to continue to incur additional substantial losses in the foreseeable future as a result of the Company’s research and development activities. </p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">As of December 31, 2018, the Company had unrestricted cash, cash equivalents and marketable securities of $204.5 million, which is available to fund future operations. </p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company believes that its unrestricted cash, cash equivalents and marketable securities as of December 31, 2018 will be sufficient for the Company to continue as a going concern for at least one year from the issuance date of its financial statements. </p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">In August 2017, the Company entered into a loan and security agreement with Oxford Finance LLC (“Oxford”) and Silicon Valley Bank (“SVB”) under which it borrowed $15.0 million (the “August 2017 Loan”) (see Note 7). The August 2017 Loan provides that an event of default will occur if, among other triggers, there occurs any circumstances that could reasonably be expected to result in a material adverse effect on the Company’s business, operations or condition, or on its ability to perform its obligations under the loan. The Company disclosed in its audited financial statements as of December 31, 2017 that it believed that there was substantial doubt about its ability to continue as a going concern given its continuing operating losses and its then available capital resources, which could have been deemed to be an event of default if such condition was considered to have a material adverse effect on the Company’s business, operations or condition. As a result, the Company classified the entire debt balance as a current liability as of December 31, 2017 given that a determination of such an event of default was outside of the Company’s control. </p> | |
CY2018 | us-gaap |
Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
|
<p style="margin-bottom:0pt;margin-top:12pt;text-indent:2.86%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Arial;text-transform:none;font-variant: normal;">Reclassifications</p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Certain reclassifications have been made to prior period amounts to conform to the current year presentation.</p> | |
CY2018 | us-gaap |
Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
|
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:2.86%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Arial;text-transform:none;font-variant: normal;">Concentrations of Credit Risk </p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Cash and cash equivalents and marketable securities consist of financial instruments that potentially subject the Company to a concentration of credit risk, to the extent of the amounts recorded on the balance sheets. The Company minimizes the amount of credit exposure by investing cash that is not required for immediate operating needs in money market funds, government obligations and/or commercial paper with short maturities. </p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:3.64%;font-size:10pt;font-family:Arial;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company regularly reviews the outstanding accounts receivable, including consideration of factors such as the age of the receivable balance. As of December 31, 2018 and 2017, there was no allowance for doubtful accounts deemed necessary. As of December 31, 2018 and 2017, the Company had an accounts receivable balance of $2.5 million and $1.6 million, respectively, attributable to the Company’s collaboration agreements. </p> | |
CY2018 | dei |
Entity Incorporation Date Of Incorporation
EntityIncorporationDateOfIncorporation
|
2003-04-21 | |
CY2017Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
0 | |
CY2017Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
0 | |
CY2017Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
18960000 | |
CY2018Q4 | stro |
Contingent Payments Of Embedded Derivative And Related Liability
ContingentPaymentsOfEmbeddedDerivativeAndRelatedLiability
|
100000 | |
CY2018Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
40230000 | |
CY2018 | dei |
Entity Incorporation State Country Name
EntityIncorporationStateCountryName
|
South San Francisco, California | |
CY2017Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
39011000 | |
CY2018Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
15000000 | |
CY2018Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
276000 | |
CY2018Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
14724000 | |
CY2017Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
25014000 | |
CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
5000000 | |
CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
6000000 | |
CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
4000000 | |
CY2018Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
47000 | |
CY2017Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
18960000 | |
CY2018 | us-gaap |
Number Of Operating Segments
NumberOfOperatingSegments
|
1 | |
CY2018 | us-gaap |
Stockholders Equity Reverse Stock Split
StockholdersEquityReverseStockSplit
|
Company effected a reverse split of all shares of its common stock at a ratio of 36.3-for-1. Upon the effectiveness of the reverse stock split, (i) all shares of outstanding common stock were adjusted; (ii) the number of shares of common stock for which each outstanding option to purchase common stock is exercisable were adjusted; (iii) the exercise price of each outstanding option to purchase common stock were adjusted; (iv) the conversion ratio for each share of outstanding redeemable convertible preferred stock which is convertible into the Company’s common stock was proportionately reduced; (v) the number of shares of common stock for which each outstanding warrant to purchase common stock is exercisable was proportionally decreased; (vi) the conversion ratio for each outstanding warrant to purchase redeemable convertible preferred stock which is convertible into warrants to purchase the Company’s common stock after the offering was proportionally decreased; and (vii) the exercise price of each outstanding warrant was proportionally increased. All of the outstanding common stock share numbers (including shares of common stock subject to the Company’s options, as converted for the outstanding redeemable convertible preferred stock shares and warrants), share prices, exercise prices and per share amounts contained in the financial statements have been retroactively adjusted in the financial statements to reflect this reverse stock split for all periods presented. The par value per share and the authorized number of shares of common stock and redeemable convertible preferred stock were not adjusted as a result of the reverse stock split. | |
CY2018Q4 | stro |
Unrestricted Cash Cash Equivalents And Marketable Securities At Carrying Value
UnrestrictedCashCashEquivalentsAndMarketableSecuritiesAtCarryingValue
|
204500000 | |
CY2018 | us-gaap |
Substantial Doubt About Going Concern Within One Year
SubstantialDoubtAboutGoingConcernWithinOneYear
|
false | |
CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
11593000 | |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
125313000 | |
CY2018Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
0 | |
CY2017Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
0 | |
CY2018Q4 | us-gaap |
Deferred Offering Costs
DeferredOfferingCosts
|
0 | |
CY2017Q4 | us-gaap |
Deferred Offering Costs
DeferredOfferingCosts
|
500000 | |
CY2018Q4 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | |
CY2017Q4 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | |
CY2018Q4 | us-gaap |
Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
|
0 | |
CY2017Q4 | us-gaap |
Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
|
0 | |
CY2018Q4 | us-gaap |
Fair Value Liabilities Level1 To Level2 Transfers Amount
FairValueLiabilitiesLevel1ToLevel2TransfersAmount
|
0 | |
CY2017Q4 | us-gaap |
Fair Value Liabilities Level1 To Level2 Transfers Amount
FairValueLiabilitiesLevel1ToLevel2TransfersAmount
|
0 | |
CY2018Q4 | us-gaap |
Fair Value Liabilities Level2 To Level1 Transfers Amount
FairValueLiabilitiesLevel2ToLevel1TransfersAmount
|
0 | |
CY2017Q4 | us-gaap |
Fair Value Liabilities Level2 To Level1 Transfers Amount
FairValueLiabilitiesLevel2ToLevel1TransfersAmount
|
0 | |
CY2018 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
|
0 | |
CY2017 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
|
0 | |
CY2018 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
|
0 | |
CY2017 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
|
0 | |
CY2018 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3
|
0 | |
CY2017 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3
|
0 | |
CY2018 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3
|
0 | |
CY2017 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3
|
0 | |
CY2018Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
195443000 | |
CY2018Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
0 | |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
3655000 | |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
3771000 | |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
3195000 | |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
10621000 | |
CY2018 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
3600000 | |
CY2017 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
3200000 | |
CY2016 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
2200000 | |
CY2018 | stro |
Remaining Deliverables Under License Agreement
RemainingDeliverablesUnderLicenseAgreement
|
0 | |
CY2017Q4 | us-gaap |
Temporary Equity Shares Authorized
TemporaryEquitySharesAuthorized
|
177082393 | |
CY2017Q4 | stro |
Temporary Equity Shares Issued And Outstanding
TemporaryEquitySharesIssuedAndOutstanding
|
173750421 | |
CY2017Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
102505000 | |
CY2017Q4 | us-gaap |
Temporary Equity Liquidation Preference
TemporaryEquityLiquidationPreference
|
102988000 | |
CY2017Q4 | us-gaap |
Class Of Warrant Or Right Outstanding
ClassOfWarrantOrRightOutstanding
|
3331972 | |
CY2018Q4 | stro |
Redeemable Convertible Preferred Stock Warrant Liability Non Current
RedeemableConvertiblePreferredStockWarrantLiabilityNonCurrent
|
0 | |
CY2018Q3 | us-gaap |
Warrants And Rights Outstanding Valuation Technique Extensible List
WarrantsAndRightsOutstandingValuationTechniqueExtensibleList
|
us-gaap:ValuationTechniqueOptionPricingModelMember | |
CY2017Q4 | us-gaap |
Warrants And Rights Outstanding Valuation Technique Extensible List
WarrantsAndRightsOutstandingValuationTechniqueExtensibleList
|
us-gaap:ValuationTechniqueOptionPricingModelMember | |
CY2016Q4 | us-gaap |
Warrants And Rights Outstanding Valuation Technique Extensible List
WarrantsAndRightsOutstandingValuationTechniqueExtensibleList
|
us-gaap:ValuationTechniqueOptionPricingModelMember | |
CY2018 | us-gaap |
Common Stock Voting Rights
CommonStockVotingRights
|
one vote per share | |
CY2018Q4 | us-gaap |
Common Stock Capital Shares Reserved For Future Issuance
CommonStockCapitalSharesReservedForFutureIssuance
|
6250381 | |
CY2017Q4 | us-gaap |
Common Stock Capital Shares Reserved For Future Issuance
CommonStockCapitalSharesReservedForFutureIssuance
|
6084499 | |
CY2018Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
10000000 | |
CY2018Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.001 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
200000 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
100000 | |
CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
300000 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
|
0.5457 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
|
0.5652 | |
CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
|
0.5800 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
|
0.6238 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
|
0.5855 | |
CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
|
0.5900 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
|
0.0267 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
|
0.0189 | |
CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
|
0.0124 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
|
0.0311 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
|
0.0218 | |
CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
|
0.0209 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
9.48 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
7.26 | |
CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
7.62 | |
CY2018 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
|
2300000 | |
CY2017 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
|
1600000 | |
CY2016 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
|
900000 | |
CY2018 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
2872000 | |
CY2017 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
1391000 | |
CY2016 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
968000 | |
CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
0 | |
CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
0 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.340 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.340 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-0.327 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0.208 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0.530 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
0.075 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
0.038 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
-0.216 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent
EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent
|
-0.005 | |
CY2018Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-12046000 | |
CY2018Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-0.07 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
|
-0.634 | |
CY2018Q2 | us-gaap |
Revenues
Revenues
|
5704000 | |
CY2018Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-11541000 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.048 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.654 | |
CY2018 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.000 | |
CY2017 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.000 | |
CY2016 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
29296000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
23820000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
|
15680000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
|
11244000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Deferred Income
DeferredTaxAssetsDeferredIncome
|
3027000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Deferred Income
DeferredTaxAssetsDeferredIncome
|
3004000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
|
2342000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
|
1103000 | |
CY2018Q4 | stro |
Deferred Tax Assets Fixed Assets
DeferredTaxAssetsFixedAssets
|
363000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
50708000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
39171000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
50708000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
39135000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
36000 | |
CY2017Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
36000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
0 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
0 | |
CY2018 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
11600000 | |
CY2017 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
-4000000 | |
CY2018 | us-gaap |
Operating Loss Carryforwards Limitations On Use
OperatingLossCarryforwardsLimitationsOnUse
|
Events which cause limitations in the amount of net operating losses that the Company may utilize in any one year include, but are not limited to, a cumulative ownership change of more than 50%, as defined, over a three-year testing period. | |
CY2018 | stro |
Period For Cumulative Ownership Change
PeriodForCumulativeOwnershipChange
|
P3Y | |
CY2018Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
2800000 | |
CY2017Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
2300000 | |
CY2016Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
1600000 | |
CY2018 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | |
CY2017Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2305000 | |
CY2016Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1635000 | |
CY2015Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
1205000 | |
CY2018 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
741000 | |
CY2017 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
670000 | |
CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
430000 | |
CY2018 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
251000 | |
CY2018Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2795000 | |
CY2018Q4 | stro |
Tax Cuts And Jobs Act Of2017 Change In Deferred Tax Assets And Valuation Allowance
TaxCutsAndJobsActOf2017ChangeInDeferredTaxAssetsAndValuationAllowance
|
-12300000 | |
CY2018 | stro |
Net Income Loss Available To Common Stockholders Basic And Diluted
NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted
|
-35317000 | |
CY2017 | stro |
Net Income Loss Available To Common Stockholders Basic And Diluted
NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted
|
-19688000 | |
CY2018 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
3524187 | |
CY2017 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
5995724 | |
CY2016 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
5953317 | |
CY2018Q4 | us-gaap |
Revenues
Revenues
|
19086000 | |
CY2018Q3 | us-gaap |
Revenues
Revenues
|
7836000 | |
CY2018Q1 | us-gaap |
Revenues
Revenues
|
5793000 | |
CY2018Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1493000 | |
CY2018Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-10237000 | |
CY2018Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-21.26 | |
CY2017Q2 | us-gaap |
Revenues
Revenues
|
15357000 | |
CY2017Q1 | us-gaap |
Revenues
Revenues
|
14845000 | |
CY2017Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-15344000 | |
CY2018Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-24.17 | |
CY2018Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-25.76 | |
CY2017Q4 | us-gaap |
Revenues
Revenues
|
4040000 | |
CY2017Q3 | us-gaap |
Revenues
Revenues
|
17499000 | |
CY2017Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1418000 | |
CY2017Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1812000 | |
CY2017Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1114000 | |
CY2017Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-33.51 | |
CY2017Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-3.14 | |
CY2017Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-4.07 | |
CY2017Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-2.55 |