2024 Q1 Form 10-K Financial Statement

#000095017024009809 Filed on February 01, 2024

View on sec.gov

Income Statement

Concept 2024 Q1 2023 Q4 2023
Revenue $0.00 $0.00 $0.00
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin $2.317M $1.543M $6.283M
YoY Change 64.79% 3.77% 7.46%
% of Gross Profit
Research & Development $165.0K $47.00K $1.013M
YoY Change -57.69% -22.95% -78.67%
% of Gross Profit
Depreciation & Amortization $3.000K $3.000K $15.00K
YoY Change -25.0% -40.0% -25.0%
% of Gross Profit
Operating Expenses $2.482M $1.590M $7.296M
YoY Change 38.2% 2.71% -31.14%
Operating Profit -$2.482M -$7.296M
YoY Change 38.2% -31.14%
Interest Expense $473.0K $501.0K $1.957M
YoY Change 5.11% 33.96% 189.93%
% of Operating Profit
Other Income/Expense, Net $0.00 $0.00
YoY Change -100.0%
Pretax Income -$2.009M -$1.089M -$5.339M
YoY Change 49.26% -7.24% -46.21%
Income Tax $0.00
% Of Pretax Income
Net Earnings -$2.009M -$1.089M -$5.339M
YoY Change 49.26% -7.24% -46.21%
Net Earnings / Revenue
Basic Earnings Per Share -$0.14 -$0.37
Diluted Earnings Per Share -$0.14 -$0.08 -$0.37
COMMON SHARES
Basic Shares Outstanding 14.50M 14.41M 14.42M
Diluted Shares Outstanding 14.50M 14.42M

Balance Sheet

Concept 2024 Q1 2023 Q4 2023
SHORT-TERM ASSETS
Cash & Short-Term Investments $35.90M $37.43M $37.43M
YoY Change -12.11% -11.81% -11.81%
Cash & Equivalents $35.90M $37.43M $37.43M
Short-Term Investments
Other Short-Term Assets $767.0K $161.0K $161.0K
YoY Change -9.98% -36.61% -36.61%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets $36.67M $37.59M $37.59M
YoY Change -12.07% -11.96% -11.96%
LONG-TERM ASSETS
Property, Plant & Equipment $7.000K $10.00K $257.0K
YoY Change -66.67% -60.0% -30.16%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets $12.00K $12.00K $12.00K
YoY Change -33.33% -33.33% -33.33%
Total Long-Term Assets $36.00K $269.0K $269.0K
YoY Change -89.92% -30.31% -30.31%
TOTAL ASSETS
Total Short-Term Assets $36.67M $37.59M $37.59M
Total Long-Term Assets $36.00K $269.0K $269.0K
Total Assets $36.71M $37.86M $37.86M
YoY Change -12.73% -12.12% -12.12%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $529.0K $362.0K $362.0K
YoY Change 44.54% 8.38% 8.38%
Accrued Expenses $1.052M $275.0K $275.0K
YoY Change 16.89% -65.54% -65.54%
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 $1.581M $637.0K $637.0K
YoY Change 24.88% -43.73% -43.73%
LONG-TERM LIABILITIES
Long-Term Debt $0.00 $0.00 $0.00
YoY Change
Other Long-Term Liabilities $0.00 $204.0K $204.0K
YoY Change -100.0% -27.14% -27.14%
Total Long-Term Liabilities $0.00 $204.0K $204.0K
YoY Change -100.0% -27.14% -27.14%
TOTAL LIABILITIES
Total Short-Term Liabilities $1.581M $637.0K $637.0K
Total Long-Term Liabilities $0.00 $204.0K $204.0K
Total Liabilities $1.581M $841.0K $841.0K
YoY Change 3.47% -40.44% -40.44%
SHAREHOLDERS EQUITY
Retained Earnings -$190.8M -$188.7M
YoY Change 3.25% 2.91%
Common Stock $225.9M $225.8M
YoY Change 0.26% 0.3%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $35.13M $37.02M $37.02M
YoY Change
Total Liabilities & Shareholders Equity $36.71M $37.86M $37.86M
YoY Change -12.73% -12.12% -12.12%

Cashflow Statement

Concept 2024 Q1 2023 Q4 2023
OPERATING ACTIVITIES
Net Income -$2.009M -$1.089M -$5.339M
YoY Change 49.26% -7.24% -46.21%
Depreciation, Depletion And Amortization $3.000K $3.000K $15.00K
YoY Change -25.0% -40.0% -25.0%
Cash From Operating Activities -$1.528M -$1.056M -$5.014M
YoY Change -4.2% -29.32% -54.05%
INVESTING ACTIVITIES
Capital Expenditures $0.00 $0.00
YoY Change -100.0%
Acquisitions
YoY Change
Other Investing Activities $0.00
YoY Change
Cash From Investing Activities $0.00 $0.00 $0.00
YoY Change -100.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 0.000 0.000 0.000
YoY Change
NET CHANGE
Cash From Operating Activities -1.528M -1.056M -5.014M
Cash From Investing Activities 0.000 0.000 0.000
Cash From Financing Activities 0.000 0.000 0.000
Net Change In Cash -1.528M -1.056M -5.014M
YoY Change -4.2% -29.32% -54.06%
FREE CASH FLOW
Cash From Operating Activities -$1.528M -$1.056M -$5.014M
Capital Expenditures $0.00 $0.00
Free Cash Flow -$1.056M -$5.014M
YoY Change -29.32% -54.06%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2023 dei Amendment Flag
AmendmentFlag
false
CY2023 dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
FY
CY2023 dei Entity Central Index Key
EntityCentralIndexKey
0000907654
CY2023Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
CY2022Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
CY2023Q4 us-gaap Preferred Stock Value
PreferredStockValue
CY2022Q4 us-gaap Preferred Stock Value
PreferredStockValue
CY2023Q4 us-gaap Operating Lease Liability Current Statement Of Financial Position Extensible List
OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2023#OtherAccruedLiabilitiesCurrent
CY2023Q4 us-gaap Operating Lease Liability Current Statement Of Financial Position Extensible List
OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2023#OtherAccruedLiabilitiesCurrent
CY2023Q4 us-gaap Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List
OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList
http://fasb.org/us-gaap/2023#OperatingLeaseLiabilityNoncurrent
CY2023 dei Document Type
DocumentType
10-K
CY2023 dei Document Annual Report
DocumentAnnualReport
true
CY2023 dei Document Period End Date
DocumentPeriodEndDate
2023-12-31
CY2023 dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
CY2023 dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2023
CY2023 dei Document Transition Report
DocumentTransitionReport
false
CY2023 dei Entity File Number
EntityFileNumber
000-22873
CY2023 dei Entity Registrant Name
EntityRegistrantName
ARCA BIOPHARMA, INC.
CY2023 dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
DE
CY2023 dei Entity Tax Identification Number
EntityTaxIdentificationNumber
36-3855489
CY2023 dei Entity Address Address Line1
EntityAddressAddressLine1
10170 Church Ranch Way
CY2023 dei Entity Address Address Line2
EntityAddressAddressLine2
Suite 100
CY2023 dei Entity Address City Or Town
EntityAddressCityOrTown
Westminster
CY2023 dei Entity Address State Or Province
EntityAddressStateOrProvince
CO
CY2023 dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
80021
CY2023 dei City Area Code
CityAreaCode
720
CY2023 dei Local Phone Number
LocalPhoneNumber
940-2200
CY2023 dei Security12b Title
Security12bTitle
Common Stock, par value $0.001 per share
CY2023 dei Trading Symbol
TradingSymbol
ABIO
CY2023 dei Security Exchange Name
SecurityExchangeName
NASDAQ
CY2023 dei Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
No
CY2023 dei Entity Voluntary Filers
EntityVoluntaryFilers
No
CY2023 dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
CY2023 dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
CY2023 dei Entity Filer Category
EntityFilerCategory
Non-accelerated Filer
CY2023 dei Entity Small Business
EntitySmallBusiness
true
CY2023 dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
CY2023 dei Document Fin Stmt Error Correction Flag
DocumentFinStmtErrorCorrectionFlag
false
CY2023 dei Entity Shell Company
EntityShellCompany
false
CY2023Q2 dei Entity Public Float
EntityPublicFloat
20914221
CY2024Q1 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
14501143
CY2023 dei Auditor Firm
AuditorFirmId
185
CY2023 dei Auditor Name
AuditorName
KPMG LLP
CY2023 dei Auditor Location
AuditorLocation
Denver, CO
CY2023Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
37431000
CY2022Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
42445000
CY2023Q4 us-gaap Other Assets Current
OtherAssetsCurrent
161000
CY2022Q4 us-gaap Other Assets Current
OtherAssetsCurrent
254000
CY2023Q4 us-gaap Assets Current
AssetsCurrent
37592000
CY2022Q4 us-gaap Assets Current
AssetsCurrent
42699000
CY2023Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
247000
CY2022Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
343000
CY2023Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
10000
CY2022Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
25000
CY2023Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
12000
CY2022Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
18000
CY2023Q4 us-gaap Assets
Assets
37861000
CY2022Q4 us-gaap Assets
Assets
43085000
CY2023Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
362000
CY2022Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
334000
CY2023Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
100000
CY2022Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
173000
CY2023Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
175000
CY2022Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
625000
CY2023Q4 us-gaap Liabilities Current
LiabilitiesCurrent
637000
CY2022Q4 us-gaap Liabilities Current
LiabilitiesCurrent
1132000
CY2023Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
204000
CY2022Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
280000
CY2023Q4 us-gaap Liabilities
Liabilities
841000
CY2022Q4 us-gaap Liabilities
Liabilities
1412000
CY2023Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.001
CY2022Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.001
CY2023Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
5000000
CY2022Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
5000000
CY2023Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0
CY2022Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0
CY2023Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
0
CY2022Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
0
CY2023Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.001
CY2022Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.001
CY2023Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
100000000
CY2022Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
100000000
CY2023Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
14501143
CY2023Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
14501143
CY2022Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
14410143
CY2022Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
14410143
CY2023Q4 us-gaap Common Stock Value
CommonStockValue
14000
CY2022Q4 us-gaap Common Stock Value
CommonStockValue
14000
CY2023Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
225747000
CY2022Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
225061000
CY2023Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-188741000
CY2022Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-183402000
CY2023Q4 us-gaap Stockholders Equity
StockholdersEquity
37020000
CY2022Q4 us-gaap Stockholders Equity
StockholdersEquity
41673000
CY2023Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
37861000
CY2022Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
43085000
CY2023 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
6283000
CY2022 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
5847000
CY2023 us-gaap Research And Development Expense
ResearchAndDevelopmentExpense
1013000
CY2022 us-gaap Research And Development Expense
ResearchAndDevelopmentExpense
4749000
CY2023 us-gaap Operating Expenses
OperatingExpenses
7296000
CY2022 us-gaap Operating Expenses
OperatingExpenses
10596000
CY2023 us-gaap Operating Income Loss
OperatingIncomeLoss
-7296000
CY2022 us-gaap Operating Income Loss
OperatingIncomeLoss
-10596000
CY2023 us-gaap Interest And Other Income
InterestAndOtherIncome
1957000
CY2022 us-gaap Interest And Other Income
InterestAndOtherIncome
675000
CY2022 us-gaap Other Nonoperating Expense
OtherNonoperatingExpense
5000
CY2023 us-gaap Net Income Loss
NetIncomeLoss
-5339000
CY2022 us-gaap Net Income Loss
NetIncomeLoss
-9926000
CY2023 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-0.37
CY2023 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-0.37
CY2022 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-0.69
CY2022 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-0.69
CY2023 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
14415877
CY2023 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
14415877
CY2022 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
14410143
CY2022 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
14410143
CY2021Q4 us-gaap Stockholders Equity
StockholdersEquity
51043000
CY2022 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
556000
CY2022 us-gaap Net Income Loss
NetIncomeLoss
-9926000
CY2022Q4 us-gaap Stockholders Equity
StockholdersEquity
41673000
CY2023 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
686000
CY2023 us-gaap Net Income Loss
NetIncomeLoss
-5339000
CY2023Q4 us-gaap Stockholders Equity
StockholdersEquity
37020000
CY2023 us-gaap Net Income Loss
NetIncomeLoss
-5339000
CY2022 us-gaap Net Income Loss
NetIncomeLoss
-9926000
CY2023 us-gaap Depreciation And Amortization
DepreciationAndAmortization
15000
CY2022 us-gaap Depreciation And Amortization
DepreciationAndAmortization
20000
CY2023 us-gaap Operating Lease Right Of Use Asset Amortization Expense
OperatingLeaseRightOfUseAssetAmortizationExpense
96000
CY2022 us-gaap Operating Lease Right Of Use Asset Amortization Expense
OperatingLeaseRightOfUseAssetAmortizationExpense
94000
CY2023 us-gaap Share Based Compensation
ShareBasedCompensation
686000
CY2022 us-gaap Share Based Compensation
ShareBasedCompensation
556000
CY2022 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
-5000
CY2023 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-93000
CY2022 us-gaap Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
-808000
CY2023 us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
-6000
CY2022 us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
0
CY2023 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
28000
CY2022 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-783000
CY2023 us-gaap Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
-73000
CY2022 us-gaap Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
-752000
CY2023 us-gaap Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
-526000
CY2022 us-gaap Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
-934000
CY2023 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-5014000
CY2022 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-10912000
CY2023 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
0
CY2022 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
2000
CY2023 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
0
CY2022 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-2000
CY2023 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
0
CY2022 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
0
CY2023 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-5014000
CY2022 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-10914000
CY2022Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
42445000
CY2021Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
53359000
CY2023Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
37431000
CY2022Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
42445000
CY2023 us-gaap Revenues
Revenues
0
CY2023 us-gaap Use Of Estimates
UseOfEstimates
<p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Accounting Estimates in the Preparation of Financial Statements</span><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting period. The Company bases estimates on various assumptions that are believed to be reasonable under the circumstances. The Company believes significant judgment was involved in estimating the outsourcing expenses, and in estimating other accrued liabilities and income taxes. Management is continually evaluating and updating these estimates, and it is possible that these estimates will change in the future or that actual results may differ from these estimates.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
CY2023 us-gaap Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
<p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Concentrations of Credit Risk</span><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;"> </span></p><p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash and cash equivalents. The Company has </span><span style="font-size:10pt;font-family:Times New Roman;color:#000000;white-space:pre-wrap;min-width:fit-content;">no</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> off-balance-sheet concentrations of credit risk, such as foreign exchange contracts, option contracts, or foreign currency hedging arrangements. The Company maintains cash and cash equivalent balances in the form of bank demand deposits and money market fund accounts with financial institutions that management believes are creditworthy. Such balances may at times exceed the insured amount.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
CY2023Q4 us-gaap Fair Value Disclosure Offbalance Sheet Risks Amount Asset
FairValueDisclosureOffbalanceSheetRisksAmountAsset
0
CY2023 us-gaap Number Of Operating Segments
NumberOfOperatingSegments
1
CY2023Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
10000
CY2022Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
25000
CY2023 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
616707
CY2022 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
795960
CY2023 abio Fair Value Assets Between Hierarchy Levels Transfers Amount
FairValueAssetsBetweenHierarchyLevelsTransfersAmount
0
CY2022 abio Fair Value Assets Between Hierarchy Levels Transfers Amount
FairValueAssetsBetweenHierarchyLevelsTransfersAmount
0
CY2023Q4 us-gaap Debt Longterm And Shortterm Combined Amount
DebtLongtermAndShorttermCombinedAmount
0
CY2022Q4 us-gaap Debt Longterm And Shortterm Combined Amount
DebtLongtermAndShorttermCombinedAmount
0
CY2023Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
222000
CY2022Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
229000
CY2023Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
212000
CY2022Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
204000
CY2023 us-gaap Depreciation And Amortization
DepreciationAndAmortization
15000
CY2022 us-gaap Depreciation And Amortization
DepreciationAndAmortization
20000
CY2023Q4 abio Percentage Of Retention Bonuses
PercentageOfRetentionBonuses
0.50
CY2023 abio Retention Bonus Paid
RetentionBonusPaid
86000
CY2023Q4 abio Retention Bonuses
RetentionBonuses
311000
CY2023 us-gaap Severance Costs1
SeveranceCosts1
159000
CY2023Q4 us-gaap Restructuring Reserve Current
RestructuringReserveCurrent
0
CY2022 us-gaap Restructuring And Related Cost Number Of Positions Eliminated Period Percent
RestructuringAndRelatedCostNumberOfPositionsEliminatedPeriodPercent
0.67
CY2022 us-gaap Restructuring And Related Cost Number Of Positions Eliminated
RestructuringAndRelatedCostNumberOfPositionsEliminated
12
CY2020Q3 us-gaap Area Of Real Estate Property
AreaOfRealEstateProperty
5200
CY2020Q3 us-gaap Lessee Operating Lease Term Of Contract
LesseeOperatingLeaseTermOfContract
P42M
CY2020Q3 us-gaap Lessee Operating Lease Option To Extend
LesseeOperatingLeaseOptionToExtend
option to renew for an additional 36 month term at the then prevailing rental rate.
CY2020Q3 us-gaap Lessee Operating Lease Existence Of Option To Extend
LesseeOperatingLeaseExistenceOfOptionToExtend
true
CY2020Q3 us-gaap Lessee Operating Lease Renewal Term
LesseeOperatingLeaseRenewalTerm
P36M
CY2021Q2 abio Area Of Real Estate Property Sublease Additional Office Facilities
AreaOfRealEstatePropertySubleaseAdditionalOfficeFacilities
3000
CY2021Q2 abio Lessee Operating Sublease Term Of Contract
LesseeOperatingSubleaseTermOfContract
P29M
CY2023 us-gaap Lessee Operating Lease Assumptions And Judgments Allocation Of Lease And Nonlease Component
LesseeOperatingLeaseAssumptionsAndJudgmentsAllocationOfLeaseAndNonleaseComponent
The leases include real estate taxes and insurance, which is not a lease component and is not included in the lease obligation. In addition, common area maintenance charges are based on actual costs incurred and are a non-lease component that is not included in the lease obligation.
CY2023Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
93000
CY2023Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
96000
CY2023Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
100000
CY2023Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
25000
CY2023Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
314000
CY2023Q4 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
34000
CY2023Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
76000
CY2023Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
204000
CY2023Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
280000
CY2023 us-gaap Operating Lease Payments
OperatingLeasePayments
127000
CY2022 us-gaap Operating Lease Payments
OperatingLeasePayments
131000
CY2023Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P3Y2M12D
CY2023Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.07
CY2023 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period
SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
P10Y
CY2022 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
P5Y6M
CY2022 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
1.07
CY2022 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
0.0356
CY2022 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
0
CY2022 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
1.87
CY2021Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
904123
CY2021Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
5.59
CY2022 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
60000
CY2022 us-gaap Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
2.31
CY2022 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
259163
CY2022 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
4.74
CY2022Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
704960
CY2022Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
5.62
CY2022 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
P8Y3M14D
CY2022Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
18000
CY2023 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
88253
CY2023 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
11.68
CY2023Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
616707
CY2023Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
4.76
CY2023 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
P7Y4M6D
CY2023Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
463068
CY2023Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
5.28
CY2023 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
P7Y3M14D
CY2023Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
616661
CY2023Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
4.76
CY2023 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1
P7Y4M6D
CY2022 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
91000
CY2022 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
2.21
CY2022Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
91000
CY2022Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
2.21
CY2023 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
91000
CY2023 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
2.21
CY2023 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
686000
CY2022 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
556000
CY2023 us-gaap Description Of Defined Contribution Pension And Other Postretirement Plans
DescriptionOfDefinedContributionPensionAndOtherPostretirementPlans
matching contribution equal to 100% of the employee’s first 3% of the employee’s contributions and 50% of the employee’s next 2% of contributions.
CY2023 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
56000
CY2022 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
96000
CY2023Q4 us-gaap Operating Loss Carryforwards
OperatingLossCarryforwards
208100000
CY2023 us-gaap Tax Credit Carryforward Description
TaxCreditCarryforwardDescription
The net operating loss carryforwards beginning in 2018, have no expiration.
CY2023Q4 abio Deferred Tax Assets And Liabilities Valuation Allowance
DeferredTaxAssetsAndLiabilitiesValuationAllowance
55500000
CY2023 abio Valuation Allowance Deferred Tax Assets And Liabilities Change In Amount
ValuationAllowanceDeferredTaxAssetsAndLiabilitiesChangeInAmount
1200000
CY2023 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.21
CY2022 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.21
CY2023 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
-1121000
CY2022 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
-2085000
CY2023 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
-192000
CY2022 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
-357000
CY2023 us-gaap Income Tax Reconciliation Tax Credits Research
IncomeTaxReconciliationTaxCreditsResearch
0
CY2022 us-gaap Income Tax Reconciliation Tax Credits Research
IncomeTaxReconciliationTaxCreditsResearch
0
CY2023 abio Income Tax Reconciliation Adjustment To Deferred Tax Asset
IncomeTaxReconciliationAdjustmentToDeferredTaxAsset
47000
CY2022 abio Income Tax Reconciliation Adjustment To Deferred Tax Asset
IncomeTaxReconciliationAdjustmentToDeferredTaxAsset
2000
CY2023 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
107000
CY2022 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
186000
CY2023 us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
1159000
CY2022 us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
2254000
CY2023 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
0
CY2022 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
0
CY2023Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration
DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
51190000
CY2022Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration
DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
50008000
CY2023Q4 us-gaap Deferred Tax Assets Charitable Contribution Carryforwards
DeferredTaxAssetsCharitableContributionCarryforwards
371000
CY2022Q4 us-gaap Deferred Tax Assets Charitable Contribution Carryforwards
DeferredTaxAssetsCharitableContributionCarryforwards
393000
CY2023Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
2420000
CY2022Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
2420000
CY2023Q4 abio Deferred Tax Asset Research And Development
DeferredTaxAssetResearchAndDevelopment
951000
CY2022Q4 abio Deferred Tax Asset Research And Development
DeferredTaxAssetResearchAndDevelopment
979000
CY2023Q4 us-gaap Deferred Tax Assets Goodwill And Intangible Assets
DeferredTaxAssetsGoodwillAndIntangibleAssets
354000
CY2022Q4 us-gaap Deferred Tax Assets Goodwill And Intangible Assets
DeferredTaxAssetsGoodwillAndIntangibleAssets
356000
CY2023Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
232000
CY2022Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
205000
CY2023Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
7000
CY2022Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
6000
CY2023Q4 abio Deferred Tax Assets Lease Liabilities
DeferredTaxAssetsLeaseLiabilities
69000
CY2022Q4 abio Deferred Tax Assets Lease Liabilities
DeferredTaxAssetsLeaseLiabilities
94000
CY2023Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
55594000
CY2022Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
54461000
CY2023Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
55531000
CY2022Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
54372000
CY2023Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
63000
CY2022Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
89000
CY2023Q4 abio Deferred Tax Liabilities Right Of Use Asset
DeferredTaxLiabilitiesRightOfUseAsset
61000
CY2022Q4 abio Deferred Tax Liabilities Right Of Use Asset
DeferredTaxLiabilitiesRightOfUseAsset
84000
CY2023Q4 us-gaap Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
2000
CY2022Q4 us-gaap Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
5000
CY2023Q4 us-gaap Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
0
CY2022Q4 us-gaap Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
0
CY2023 us-gaap Open Tax Year
OpenTaxYear
2009
CY2023Q4 us-gaap Liability For Uncertain Tax Positions Current
LiabilityForUncertainTaxPositionsCurrent
0
CY2022Q4 us-gaap Liability For Uncertain Tax Positions Current
LiabilityForUncertainTaxPositionsCurrent
0
CY2023 us-gaap Income Tax Examination Penalties And Interest Expense
IncomeTaxExaminationPenaltiesAndInterestExpense
0
CY2022 us-gaap Income Tax Examination Penalties And Interest Expense
IncomeTaxExaminationPenaltiesAndInterestExpense
0
CY2023Q4 ecd Rule10b51 Arr Adopted Flag
Rule10b51ArrAdoptedFlag
false
CY2023Q4 ecd Rule10b51 Arr Trmntd Flag
Rule10b51ArrTrmntdFlag
false
CY2023Q4 ecd Non Rule10b51 Arr Adopted Flag
NonRule10b51ArrAdoptedFlag
false
CY2023Q4 ecd Non Rule10b51 Arr Trmntd Flag
NonRule10b51ArrTrmntdFlag
false
CY2023Q4 abio Rule10 B51 Arr Modified Flag
Rule10B51ArrModifiedFlag
false
CY2023Q4 abio Non Rule10 B51 Arrmodified Flag
NonRule10B51ArrmodifiedFlag
false
CY2023 ecd Insider Trd Policies Proc Adopted Flag
InsiderTrdPoliciesProcAdoptedFlag
true

Files In Submission

Name View Source Status
0000950170-24-009809-index-headers.html Edgar Link pending
0000950170-24-009809-index.html Edgar Link pending
0000950170-24-009809.txt Edgar Link pending
0000950170-24-009809-xbrl.zip Edgar Link pending
abio-20231231.htm Edgar Link pending
abio-20231231.xsd Edgar Link pending
abio-ex19.htm Edgar Link pending
abio-ex23_1.htm Edgar Link pending
abio-ex31_1.htm Edgar Link pending
abio-ex31_2.htm Edgar Link pending
abio-ex32_1.htm Edgar Link pending
abio-ex97.htm Edgar Link pending
Financial_Report.xlsx Edgar Link pending
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
abio-20231231_htm.xml Edgar Link completed
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R5.htm Edgar Link pending
R6.htm Edgar Link pending
R7.htm Edgar Link pending
R8.htm Edgar Link pending
R9.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending