Derivative liability for Monte Carlo Simulations (Detail) (Derivative Liability, USD $)
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0 Months Ended | 1 Months Ended |
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Mar. 15, 2015
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Mar. 31, 2015
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Derivative Liability
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Derivative [Line Items] | ||
Stated interest rate |
8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
Exercise price per share |
$ 0.20us-gaap_FairValueAssumptionsExercisePrice / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
$ 0.20us-gaap_FairValueAssumptionsExercisePrice / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
Expected volatility |
90.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
90.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
Risk-free interest rate |
0.24%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
0.25%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
Credit adjusted discount rate |
20.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
20.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_DebtInstrumentAxis = arth_DerivativeLiabilityMember |
Remaining expected term of underlying securities (years) | 1 year | 11 months 16 days |
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- Definition
Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Agreed upon price for the exchange of the underlying asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Risk-free interest rate assumption used in valuing an instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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