2020 Q1 Form 10-K Financial Statement
#000119312520059835 Filed on March 03, 2020
Income Statement
Concept | 2020 Q1 | 2019 Q4 | 2019 Q3 |
---|---|---|---|
Revenue | $0.00 | $0.00 | $0.00 |
YoY Change | |||
Cost Of Revenue | |||
YoY Change | |||
Gross Profit | |||
YoY Change | |||
Gross Profit Margin | |||
Selling, General & Admin | $7.280M | $5.920M | $6.120M |
YoY Change | 25.3% | 6.86% | 15.91% |
% of Gross Profit | |||
Research & Development | $13.96M | $18.71M | $16.52M |
YoY Change | 32.51% | 51.01% | 44.72% |
% of Gross Profit | |||
Depreciation & Amortization | $493.0K | $480.0K | $480.0K |
YoY Change | 16.55% | 33.33% | 128.57% |
% of Gross Profit | |||
Operating Expenses | $21.24M | $24.64M | $22.64M |
YoY Change | 29.93% | 37.42% | 35.58% |
Operating Profit | -$21.24M | -$24.64M | -$22.64M |
YoY Change | 29.93% | 37.41% | 35.58% |
Interest Expense | $1.230M | $1.400M | $1.650M |
YoY Change | -19.08% | 12.0% | 139.13% |
% of Operating Profit | |||
Other Income/Expense, Net | |||
YoY Change | |||
Pretax Income | -$20.01M | -$23.24M | -$20.99M |
YoY Change | 34.93% | 39.33% | 31.02% |
Income Tax | |||
% Of Pretax Income | |||
Net Earnings | -$20.01M | -$23.24M | -$20.99M |
YoY Change | 34.9% | 39.32% | 31.06% |
Net Earnings / Revenue | |||
Basic Earnings Per Share | |||
Diluted Earnings Per Share | -$508.4K | -$594.5K | -$540.7K |
COMMON SHARES | |||
Basic Shares Outstanding | 39.33M | 38.99M | 38.77M |
Diluted Shares Outstanding |
Balance Sheet
Concept | 2020 Q1 | 2019 Q4 | 2019 Q3 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $130.4M | $145.7M | $160.6M |
YoY Change | 2.44% | 2.17% | 0.56% |
Cash & Equivalents | $74.93M | $65.07M | $85.51M |
Short-Term Investments | $55.50M | $80.70M | $75.10M |
Other Short-Term Assets | $2.700M | $4.100M | $4.700M |
YoY Change | -65.38% | 46.43% | 46.88% |
Inventory | |||
Prepaid Expenses | |||
Receivables | |||
Other Receivables | |||
Total Short-Term Assets | $133.1M | $149.8M | $165.2M |
YoY Change | -1.44% | 3.11% | 1.45% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $9.529M | $9.891M | $10.22M |
YoY Change | -10.44% | -3.14% | 25.45% |
Goodwill | |||
YoY Change | |||
Intangibles | |||
YoY Change | |||
Long-Term Investments | |||
YoY Change | |||
Other Assets | $1.800M | $1.800M | $1.800M |
YoY Change | -10.0% | 0.0% | 0.0% |
Total Long-Term Assets | $11.31M | $11.67M | $12.00M |
YoY Change | -10.35% | -2.68% | 20.89% |
TOTAL ASSETS | |||
Total Short-Term Assets | $133.1M | $149.8M | $165.2M |
Total Long-Term Assets | $11.31M | $11.67M | $12.00M |
Total Assets | $144.4M | $161.5M | $177.2M |
YoY Change | -2.2% | 2.67% | 2.57% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $3.947M | $2.812M | $2.038M |
YoY Change | 31.13% | -19.47% | -58.38% |
Accrued Expenses | $8.756M | $11.30M | $7.591M |
YoY Change | 78.33% | 63.17% | 7.95% |
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 | $12.70M | $14.12M | $9.629M |
YoY Change | 60.39% | 35.47% | -19.28% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $0.00 | $0.00 | $0.00 |
YoY Change | |||
Other Long-Term Liabilities | $6.300M | $6.200M | $6.100M |
YoY Change | 8.62% | 416.67% | 454.55% |
Total Long-Term Liabilities | $6.300M | $6.200M | $6.100M |
YoY Change | 8.62% | 397.59% | 464.81% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $12.70M | $14.12M | $9.629M |
Total Long-Term Liabilities | $6.300M | $6.200M | $6.100M |
Total Liabilities | $19.04M | $20.32M | $15.70M |
YoY Change | 39.09% | 74.2% | 20.72% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | -$199.5M | -$179.5M | -$156.3M |
YoY Change | 69.71% | 74.73% | 81.6% |
Common Stock | $324.5M | $320.7M | $317.7M |
YoY Change | 29.03% | 29.11% | 29.24% |
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $125.4M | $141.2M | $161.5M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $144.4M | $161.5M | $177.2M |
YoY Change | -2.2% | 2.67% | 2.57% |
Cashflow Statement
Concept | 2020 Q1 | 2019 Q4 | 2019 Q3 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | -$20.01M | -$23.24M | -$20.99M |
YoY Change | 34.9% | 39.32% | 31.06% |
Depreciation, Depletion And Amortization | $493.0K | $480.0K | $480.0K |
YoY Change | 16.55% | 33.33% | 128.57% |
Cash From Operating Activities | -$16.66M | -$15.62M | -$11.51M |
YoY Change | 11.52% | 23.67% | 9.1% |
INVESTING ACTIVITIES | |||
Capital Expenditures | $131.0K | -$150.0K | -$530.0K |
YoY Change | -89.53% | -96.55% | -78.54% |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | $25.53M | -$5.570M | $64.34M |
YoY Change | -322.39% | -93.37% | |
Cash From Investing Activities | $25.40M | -$5.730M | $63.81M |
YoY Change | -299.47% | -93.52% | -2672.98% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | |||
YoY Change | |||
Debt Paid & Issued, Net | |||
YoY Change | |||
Cash From Financing Activities | 1.124M | 920.0K | 90.00K |
YoY Change | 99.64% | -295.74% | -112.33% |
NET CHANGE | |||
Cash From Operating Activities | -16.66M | -15.62M | -11.51M |
Cash From Investing Activities | 25.40M | -5.730M | 63.81M |
Cash From Financing Activities | 1.124M | 920.0K | 90.00K |
Net Change In Cash | 9.862M | -20.43M | 52.39M |
YoY Change | -136.39% | -79.87% | -480.74% |
FREE CASH FLOW | |||
Cash From Operating Activities | -$16.66M | -$15.62M | -$11.51M |
Capital Expenditures | $131.0K | -$150.0K | -$530.0K |
Free Cash Flow | -$16.79M | -$15.47M | -$10.98M |
YoY Change | 3.71% | 86.84% | 35.89% |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2019Q4 | us-gaap |
Restricted Cash Noncurrent
RestrictedCashNoncurrent
|
1780000 | |
CY2018Q4 | us-gaap |
Restricted Cash Noncurrent
RestrictedCashNoncurrent
|
1780000 | |
CY2019Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
9891000 | |
CY2018Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
10212000 | |
CY2019Q4 | us-gaap |
Assets
Assets
|
161514000 | |
CY2018Q4 | us-gaap |
Assets
Assets
|
157313000 | |
CY2019Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
65071000 | |
CY2018Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
58345000 | |
CY2019Q4 | us-gaap |
Marketable Securities Current
MarketableSecuritiesCurrent
|
80658000 | |
CY2018Q4 | us-gaap |
Marketable Securities Current
MarketableSecuritiesCurrent
|
84225000 | |
CY2019Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
4114000 | |
CY2018Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
2751000 | |
CY2019Q4 | us-gaap |
Assets Current
AssetsCurrent
|
149843000 | |
CY2018Q4 | us-gaap |
Assets Current
AssetsCurrent
|
145321000 | |
CY2019Q4 | us-gaap |
Deferred Rent Credit Noncurrent
DeferredRentCreditNoncurrent
|
6206000 | |
CY2018Q4 | us-gaap |
Deferred Rent Credit Noncurrent
DeferredRentCreditNoncurrent
|
1246000 | |
CY2019Q4 | us-gaap |
Liabilities
Liabilities
|
20321000 | |
CY2018Q4 | us-gaap |
Liabilities
Liabilities
|
11665000 | |
CY2019Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
||
CY2018Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
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Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
161514000 | |
CY2018Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
157313000 | |
CY2019Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
2812000 | |
CY2018Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
3492000 | |
CY2019Q4 | us-gaap |
Accrued Liabilities And Other Liabilities
AccruedLiabilitiesAndOtherLiabilities
|
11303000 | |
CY2018Q4 | us-gaap |
Accrued Liabilities And Other Liabilities
AccruedLiabilitiesAndOtherLiabilities
|
6927000 | |
CY2019Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
14115000 | |
CY2018Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
10419000 | |
CY2019Q4 | us-gaap |
Preferred Stock Value
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|
||
CY2019Q4 | us-gaap |
Common Stock Value
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CY2018Q4 | us-gaap |
Common Stock Value
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|
33000 | |
CY2019Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
320641000 | |
CY2018Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
248349000 | |
CY2019Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
8000 | |
CY2018Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-8000 | |
CY2019Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
-179495000 | |
CY2018Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
-102726000 | |
CY2019Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
141193000 | |
CY2018Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
145648000 | |
CY2019 | us-gaap |
Research And Development Expense
ResearchAndDevelopmentExpense
|
59208000 | |
CY2018 | us-gaap |
Research And Development Expense
ResearchAndDevelopmentExpense
|
41340000 | |
CY2017 | us-gaap |
Research And Development Expense
ResearchAndDevelopmentExpense
|
27899000 | |
CY2019 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
23761000 | |
CY2017Q4 | us-gaap |
Temporary Equity Shares Outstanding
TemporaryEquitySharesOutstanding
|
49178527 | |
CY2017Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
92439000 | |
CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
-42118000 | |
CY2018 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
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CY2017 | us-gaap |
General And Administrative Expense
GeneralAndAdministrativeExpense
|
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CY2019 | us-gaap |
Operating Expenses
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|
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CY2018 | us-gaap |
Operating Expenses
OperatingExpenses
|
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CY2017 | us-gaap |
Operating Expenses
OperatingExpenses
|
35727000 | |
CY2019 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
16000 | |
CY2019 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-76753000 | |
CY2018 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
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CY2017 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
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CY2019 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
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CY2019 | us-gaap |
Revenues
Revenues
|
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CY2019 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
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CY2018 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
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CY2017 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-35727000 | |
CY2019 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
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CY2018 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
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CY2017 | us-gaap |
Interest And Other Income
InterestAndOtherIncome
|
236000 | |
CY2019 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
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CY2018 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
10703000 | |
CY2019 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1843000 | |
CY2018 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
875000 | |
CY2019 | us-gaap |
Investment Income Net Amortization Of Discount And Premium
InvestmentIncomeNetAmortizationOfDiscountAndPremium
|
1009000 | |
CY2017 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
2259000 | |
CY2017 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
376000 | |
CY2019 | us-gaap |
Profit Loss
ProfitLoss
|
-76769000 | |
CY2018 | us-gaap |
Profit Loss
ProfitLoss
|
-57515000 | |
CY2019 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
1363000 | |
CY2018 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
1811000 | |
CY2019 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
145000 | |
CY2018 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
2500000 | |
CY2019 | us-gaap |
Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
|
5089000 | |
CY2018 | us-gaap |
Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
|
2239000 | |
CY2019 | us-gaap |
Increase Decrease In Prepaid Rent
IncreaseDecreaseInPrepaidRent
|
-4960000 | |
CY2018 | us-gaap |
Increase Decrease In Prepaid Rent
IncreaseDecreaseInPrepaidRent
|
-1246000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-57103000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-41886000 | |
CY2019 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
3060000 | |
CY2018 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
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CY2019 | us-gaap |
Payments To Acquire Marketable Securities
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|
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CY2019 | us-gaap |
Proceeds From Sale And Maturity Of Marketable Securities
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|
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CY2019 | us-gaap |
Net Cash Provided By Used In Investing Activities
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|
1532000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Investing Activities
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|
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CY2019 | us-gaap |
Payments Of Stock Issuance Costs
PaymentsOfStockIssuanceCosts
|
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CY2018 | us-gaap |
Payments Of Stock Issuance Costs
PaymentsOfStockIssuanceCosts
|
3094000 | |
CY2019 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
2021000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
62297000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
142147000 | |
CY2019 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
6726000 | |
CY2018 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
8558000 | |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
60125000 | |
CY2017Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
51567000 | |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
66851000 | |
CY2018 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
1538000 | |
CY2018 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
29000 | |
CY2017 | us-gaap |
Profit Loss
ProfitLoss
|
-35491000 | |
CY2017 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
895000 | |
CY2019Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
80658000 | |
CY2017 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-1125000 | |
CY2017 | us-gaap |
Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
|
3342000 | |
CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-22263000 | |
CY2017 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
2199000 | |
CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-2199000 | |
CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
71486000 | |
CY2017 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
47024000 | |
CY2016Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
4543000 | |
CY2018Q2 | us-gaap |
Convertible Preferred Stock Shares Issued Upon Conversion
ConvertiblePreferredStockSharesIssuedUponConversion
|
23375405 | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
80650000 | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
29000 | |
CY2018Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
84233000 | |
CY2018Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
6000 | |
CY2018Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
14000 | |
CY2018Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
84225000 | |
CY2019Q4 | mgta |
Accrued External Research And Development Expenses Current
AccruedExternalResearchAndDevelopmentExpensesCurrent
|
6516000 | |
CY2018Q4 | mgta |
Accrued External Research And Development Expenses Current
AccruedExternalResearchAndDevelopmentExpensesCurrent
|
2619000 | |
CY2019Q4 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
11303000 | |
CY2018Q4 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
6927000 | |
CY2019Q4 | us-gaap |
Accrued Professional Fees Current
AccruedProfessionalFeesCurrent
|
660000 | |
CY2018Q4 | us-gaap |
Accrued Professional Fees Current
AccruedProfessionalFeesCurrent
|
787000 | |
CY2019Q4 | us-gaap |
Deferred Rent Credit Current
DeferredRentCreditCurrent
|
601000 | |
CY2018Q4 | us-gaap |
Deferred Rent Credit Current
DeferredRentCreditCurrent
|
71000 | |
CY2019Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
3247000 | |
CY2018Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
2526000 | |
CY2019Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
261000 | |
CY2018Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
211000 | |
CY2019 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
10001000 | |
CY2018 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
10703000 | |
CY2017 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
2259000 | |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-76769000 | |
CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-57515000 | |
CY2017 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-35491000 | |
CY2019 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-76769000 | |
CY2018 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-57603000 | |
CY2017 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-35507000 | |
CY2019 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
37014875 | |
CY2018 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
18389576 | |
CY2017 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
1856907 | |
CY2019 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-2.07 | |
CY2018 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-3.13 | |
CY2017 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-19.12 | |
CY2019 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
4898068 | |
CY2018 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
4532350 | |
CY2019 | dei |
Entity Incorporation Date Of Incorporation
EntityIncorporationDateOfIncorporation
|
2015-06-30 | |
CY2018 | us-gaap |
Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
|
-67000 | |
CY2018 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
12000 | |
CY2019 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
60874000 | |
CY2018 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
93000000 | |
CY2018 | us-gaap |
Proceeds From Issuance Of Redeemable Convertible Preferred Stock
ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock
|
52300000 | |
CY2018 | us-gaap |
Temporary Equity Accretion To Redemption Value Adjustment
TemporaryEquityAccretionToRedemptionValueAdjustment
|
88000 | |
CY2017 | us-gaap |
Proceeds From Issuance Of Redeemable Convertible Preferred Stock
ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock
|
71695000 | |
CY2017 | us-gaap |
Temporary Equity Accretion To Redemption Value Adjustment
TemporaryEquityAccretionToRedemptionValueAdjustment
|
213000 | |
CY2019Q2 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
60300000 | |
CY2018Q4 | mgta |
Accrued Property Plant And Equipment
AccruedPropertyPlantAndEquipment
|
713000 | |
CY2017 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
|
P6Y | |
CY2019Q4 | mgta |
Accrued Property Plant And Equipment
AccruedPropertyPlantAndEquipment
|
18000 | |
CY2017 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
21763772 | |
CY2019 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div style="font-size:10pt; color:#000000; font-family:times new roman; font-style:normal; font-variant:normal; font-weight:400; letter-spacing:normal; margin-bottom:0pt; margin-left:4%; margin-top:6pt; orphans:2; text-align:left; text-decoration:none; text-indent:0px; text-transform:none; -webkit-text-stroke-width:0px; white-space:normal; word-spacing:0px"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-weight:bold;display:inline;"><div style="font-style:italic;display:inline;;font-style:italic;display:inline;">Use of Estimates </div></div></div></div><div style="font-size:10pt; color:#000000; font-family:times new roman; font-style:normal; font-variant:normal; font-weight:400; letter-spacing:normal; margin-bottom:0pt; margin-top:6pt; orphans:2; text-align:left; text-decoration:none; text-indent:4%; text-transform:none; -webkit-text-stroke-width:0px; white-space:normal; word-spacing:0px"><div style="letter-spacing: 0px; top: 0px;;display:inline;">The preparation of financial statements in conformity with 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 periods. Significant estimates and assumptions reflected in these financial statements include, but are not limited to, the accrual for research and development expenses<div style="letter-spacing: 0px; top: 0px;;display:inline;"> and</div> the valuation of stock-based awards. Estimates are periodically reviewed in light of changes in circumstances, facts and experience. Changes in estimates are recorded in the period in which they become known. Actual results could differ from those estimates.</div></div> <table border="0" style="width:100%; table-layout:fixed;" cellspacing="0" cellpadding="0"><tr><td></td></tr></table> | |
CY2019 | us-gaap |
Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
|
<div style="font-size:10pt; color:#000000; font-family:times new roman; font-style:normal; font-variant:normal; font-weight:400; letter-spacing:normal; margin-bottom:0pt; margin-left:4%; margin-top:0pt; orphans:2; text-align:left; text-decoration:none; text-indent:0px; text-transform:none; -webkit-text-stroke-width:0px; white-space:normal; word-spacing:0px"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-weight:bold;display:inline;"><div style="font-style:italic;display:inline;;font-style:italic;display:inline;">Concentrations of Credit Risk and of Significant Suppliers </div></div></div></div><div style="font-size:10pt; color:#000000; font-family:times new roman; font-style:normal; font-variant:normal; font-weight:400; letter-spacing:normal; margin-bottom:0pt; margin-top:6pt; orphans:2; text-align:left; text-decoration:none; text-indent:4%; text-transform:none; -webkit-text-stroke-width:0px; white-space:normal; word-spacing:0px"><div style="letter-spacing: 0px; top: 0px;;display:inline;">Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash, cash equivalents and marketable securities. The Company maintains all cash, cash equivalents and marketable securities at two accredited financial institutions in amounts that exceed federally insured limits. The Company does not believe that it is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships.</div></div><div style="font-size:10pt; color:#000000; font-family:times new roman; font-style:normal; font-variant:normal; font-weight:400; letter-spacing:normal; margin-bottom:0pt; margin-top:12pt; orphans:2; text-align:left; text-decoration:none; text-indent:4%; text-transform:none; -webkit-text-stroke-width:0px; white-space:normal; word-spacing:0px"><div style="letter-spacing: 0px; top: 0px;;display:inline;">The Company is dependent on third-party manufacturers to supply products for research and development activities in its programs. In particular, the Company relies and expects to continue to rely on a small number of manufacturers to supply it with its requirements for the active pharmaceutical ingredients and formulated drugs related to these programs. These programs could be adversely affected by a significant interruption in the supply of active pharmaceutical ingredients and formulated drugs.</div></div> <table border="0" style="width:100%; table-layout:fixed;" cellspacing="0" cellpadding="0"><tr><td></td></tr></table> | |
CY2019 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | |
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
|
0 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
|
0.023 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
|
0.028 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
|
0.020 | |
CY2019 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
|
P6Y | |
CY2018 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
|
P6Y2M12D | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
|
0.785 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
|
0.784 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
|
0.781 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
|
0.00 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
|
0.00 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
|
0.00 | |
CY2018 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P9Y2M12D | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
|
1809566 | |
CY2019 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
|
8.86 | |
CY2019 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
294310 | |
CY2019 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
6.87 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
|
336952 | |
CY2019 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
|
8.24 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
8.88 | |
CY2019 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P8Y7M6D | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
|
4688133 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
|
8.88 | |
CY2019 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1
|
P8Y7M6D | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
|
29634000 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
1411435 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
8.56 | |
CY2019 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
|
P8Y3M18D | |
CY2019Q4 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
|
9316000 | |
CY2019 | dei |
Amendment Flag
AmendmentFlag
|
false | |
CY2019 | dei |
Entity Central Index Key
EntityCentralIndexKey
|
0001690585 | |
CY2019Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.001 | |
CY2019Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
10000000 | |
CY2019Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.001 | |
CY2019Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
150000000 | |
CY2018Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.001 | |
CY2018Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
150000000 | |
CY2019Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
39466254 | |
CY2018Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
34327554 | |
CY2019Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
39260532 | |
CY2018Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
33305033 | |
CY2017 | us-gaap |
Redeemable Preferred Stock Dividends
RedeemablePreferredStockDividends
|
437000 | |
CY2017 | mgta |
Reversal Of Cumulative Dividends On Redeemable Convertible Preferred Stock
ReversalOfCumulativeDividendsOnRedeemableConvertiblePreferredStock
|
634000 | |
CY2018 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-8000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
-8000 | |
CY2018 | us-gaap |
Investment Income Net Amortization Of Discount And Premium
InvestmentIncomeNetAmortizationOfDiscountAndPremium
|
190000 | |
CY2018 | us-gaap |
Payments To Acquire Marketable Securities
PaymentsToAcquireMarketableSecurities
|
84043000 | |
CY2017 | mgta |
Licensefeespaidincommonandpreferredstock
Licensefeespaidincommonandpreferredstock
|
9275000 | |
CY2017 | us-gaap |
Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
|
4000 | |
CY2017 | us-gaap |
Redeemable Preferred Stock Dividends
RedeemablePreferredStockDividends
|
437000 | |
CY2017 | mgta |
Reversal Of Cumulative Dividends On Redeemable Convertible Preferred Stock
ReversalOfCumulativeDividendsOnRedeemableConvertiblePreferredStock
|
634000 | |
CY2019Q4 | us-gaap |
Revenues
Revenues
|
0 | |
CY2019Q3 | us-gaap |
Revenues
Revenues
|
0 | |
CY2019Q2 | us-gaap |
Revenues
Revenues
|
0 | |
CY2019Q1 | us-gaap |
Revenues
Revenues
|
0 | |
CY2018Q3 | us-gaap |
Revenues
Revenues
|
0 | |
CY2018Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-17930000 | |
CY2018Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-16702000 | |
CY2018Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-14025000 | |
CY2018Q4 | us-gaap |
Revenues
Revenues
|
0 | |
CY2018Q2 | us-gaap |
Revenues
Revenues
|
0 | |
CY2018Q1 | us-gaap |
Revenues
Revenues
|
0 | |
CY2019Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-24637000 | |
CY2019Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-22644000 | |
CY2019Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-19338000 | |
CY2018Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-11306000 | |
CY2019Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-16350000 | |
CY2019Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-23237000 | |
CY2019Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-20990000 | |
CY2019Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-17708000 | |
CY2019Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-14834000 | |
CY2018Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-16679000 | |
CY2018Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-16015000 | |
CY2018Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-13660000 | |
CY2018Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-11161000 | |
CY2019Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-23237000 | |
CY2019Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-20990000 | |
CY2019Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-17708000 | |
CY2019Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-14834000 | |
CY2018Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-16679000 | |
CY2018Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-16015000 | |
CY2018Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-13748000 | |
CY2018Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-11161000 | |
CY2019Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-0.59 | |
CY2019Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-0.54 | |
CY2019Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-0.48 | |
CY2019Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-0.44 | |
CY2018Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-0.50 | |
CY2018Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-0.49 | |
CY2018Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-3.13 | |
CY2018Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-4.53 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.340 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.061 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.056 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.049 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
|
-0.041 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
|
-0.047 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
|
-0.034 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
|
0.134 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.012 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.021 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.037 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0.300 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0.292 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
0.252 | |
CY2019 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
20836000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
11106000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets In Process Research And Development
DeferredTaxAssetsInProcessResearchAndDevelopment
|
20723000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets In Process Research And Development
DeferredTaxAssetsInProcessResearchAndDevelopment
|
12030000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
|
7416000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
|
4108000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
2121000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
1336000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
|
865000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
|
664000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
1860000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
360000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
53821000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
29604000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
52248000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
29243000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
1573000 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
361000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
1573000 | |
CY2018Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
361000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
1573000 | |
CY2018Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
361000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
0 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
0 | |
CY2018Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
29243000 | |
CY2017Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
12466000 | |
CY2016Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
3540000 | |
CY2019 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
23005000 | |
CY2018 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
16777000 | |
CY2017 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
8926000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
52248000 | |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
0 | |
CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
0 | |
CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
0 | |
CY2017 | mgta |
Tax Cuts And Jobs Act Of2017 Net Operating Losses Carryforward Maximum Percentage Of Taxable Income
TaxCutsAndJobsActOf2017NetOperatingLossesCarryforwardMaximumPercentageOfTaxableIncome
|
0.80 | |
CY2017 | mgta |
Tax Cuts And Jobs Act Of2017 Provisional Income Tax Expense Benefit
TaxCutsAndJobsActOf2017ProvisionalIncomeTaxExpenseBenefit
|
4800000 | |
CY2019Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | |
CY2018Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | |
CY2019Q4 | us-gaap |
Operating Leases Future Minimum Payments Remainder Of Fiscal Year
OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear
|
5782000 | |
CY2019Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
6072000 | |
CY2019Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
6375000 | |
CY2019Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
6734000 | |
CY2019Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
7100000 | |
CY2019Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
24899000 | |
CY2019Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
56962000 | |
CY2019 | us-gaap |
Description Of Lessee Leasing Arrangements Operating Leases
DescriptionOfLesseeLeasingArrangementsOperatingLeases
|
In May 2018, the Company entered into a sublease for up to approximately 69,000 square feet of office and laboratory space in Cambridge, Massachusetts. The sublease was amended effective March 2019 to increase the lease payments over the lease term and to increase the sublandlord-funded tenant improvements. The sublease is subject and subordinate to a prime lease between the sublandlord and the prime landlord. The term of the sublease commenced in June 2018 and expires in February 2028. The sublandlord has the right to terminate the sublease after five years. | |
CY2019 | mgta |
Sublease Commencement Period
SubleaseCommencementPeriod
|
2018-06 | |
CY2019 | mgta |
Sublease Expiration Period
SubleaseExpirationPeriod
|
2028-02 | |
CY2019 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
6100000 | |
CY2018 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
4400000 | |
CY2017 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
1100000 | |
CY2019 | dei |
Document Type
DocumentType
|
10-K | |
CY2019 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2019-12-31 | |
CY2019 | dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2019 | |
CY2019 | dei |
Document Fiscal Period Focus
DocumentFiscalPeriodFocus
|
FY | |
CY2019 | dei |
Trading Symbol
TradingSymbol
|
MGTA | |
CY2019 | dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | |
CY2019 | dei |
Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
|
No | |
CY2019 | dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | |
CY2019 | dei |
Entity Voluntary Filers
EntityVoluntaryFilers
|
No | |
CY2019 | dei |
Entity Filer Category
EntityFilerCategory
|
Accelerated Filer | |
CY2019 | dei |
Entity Ex Transition Period
EntityExTransitionPeriod
|
false | |
CY2019 | dei |
Entity Emerging Growth Company
EntityEmergingGrowthCompany
|
true | |
CY2019 | dei |
Entity Small Business
EntitySmallBusiness
|
true | |
CY2019 | dei |
Entity Shell Company
EntityShellCompany
|
false | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
21000 | |
CY2019Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
12824000 | |
CY2018Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
11302000 | |
CY2019Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
2933000 | |
CY2018Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
1090000 | |
CY2016Q4 | us-gaap |
Temporary Equity Shares Outstanding
TemporaryEquitySharesOutstanding
|
17718974 | |
CY2016Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
17916000 | |
CY2016Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
-8874000 | |
CY2017 | us-gaap |
Stock Issued During Period Shares Restricted Stock Award Gross
StockIssuedDuringPeriodSharesRestrictedStockAwardGross
|
4 | |
CY2017 | us-gaap |
Temporary Equity Accretion To Redemption Value Adjustment
TemporaryEquityAccretionToRedemptionValueAdjustment
|
213000 | |
CY2017 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
2259000 | |
CY2018 | us-gaap |
Temporary Equity Accretion To Redemption Value Adjustment
TemporaryEquityAccretionToRedemptionValueAdjustment
|
88000 | |
CY2018 | us-gaap |
Conversion Of Stock Amount Converted1
ConversionOfStockAmountConverted1
|
144739000 | |
CY2018 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
89906000 | |
CY2018 | us-gaap |
Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
|
29000 | |
CY2018 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
10703000 | |
CY2019 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
60276000 | |
CY2019 | us-gaap |
Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
|
2021000 | |
CY2019 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
10001000 | |
CY2019Q4 | us-gaap |
Temporary Equity Shares Outstanding
TemporaryEquitySharesOutstanding
|
0 | |
CY2019Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
0 | |
CY2017 | us-gaap |
Stock Issued During Period Value Issued For Services
StockIssuedDuringPeriodValueIssuedForServices
|
0 | |
CY2017 | mgta |
Cumulative Dividends On Redeemable Convertible Preferred Shares
CumulativeDividendsOnRedeemableConvertiblePreferredShares
|
-437000 | |
CY2017 | mgta |
Reversal Of Redeemable Convertible Preferred Stock Dividend
ReversalOfRedeemableConvertiblePreferredStockDividend
|
634000 | |
CY2018 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0 | |
CY2017 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0 | |
CY2018Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.001 | |
CY2018Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
10000000 | |
CY2019Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | |
CY2018Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | |
CY2019Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | |
CY2018Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | |
CY2018 | us-gaap |
Revenues
Revenues
|
0 | |
CY2017 | us-gaap |
Revenues
Revenues
|
0 | |
CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
526000 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
29634000 | |
CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
3509829 | |
CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
8.67 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
4688133 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
6.05 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
6.56 | |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
3.31 | |
CY2019Q4 | us-gaap |
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
|
15700000 | |
CY2019 | us-gaap |
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
|
P2Y3M18D | |
CY2019Q2 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
60300000 | |
CY2018Q4 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
|
0 | |
CY2018Q4 | us-gaap |
Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
|
0 | |
CY2019 | 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 Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
|
0 | |
CY2019 | 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 Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
|
0 | |
CY2019 | dei |
Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
|
DE | |
CY2018 | mgta |
Payments Of Preferred Stock Issuance Costs
PaymentsOfPreferredStockIssuanceCosts
|
88000 | |
CY2017 | mgta |
Payments Of Preferred Stock Issuance Costs
PaymentsOfPreferredStockIssuanceCosts
|
213000 | |
CY2017 | mgta |
Proceeds From Issuance Of Common Stock And Restricted Stock
ProceedsFromIssuanceOfCommonStockAndRestrictedStock
|
4000 | |
CY2019 | dei |
Security12b Title
Security12bTitle
|
Common Stock | |
CY2019 | dei |
Entity Interactive Data Current
EntityInteractiveDataCurrent
|
Yes | |
CY2019 | dei |
Entity Address State Or Province
EntityAddressStateOrProvince
|
MA | |
CY2019 | dei |
Entity Registrant Name
EntityRegistrantName
|
Magenta Therapeutics, Inc. | |
CY2019 | dei |
Security Exchange Name
SecurityExchangeName
|
NASDAQ | |
CY2020Q1 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
39327403 | |
CY2019Q2 | dei |
Entity Public Float
EntityPublicFloat
|
364100000 |