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Fair Value of Financial Assets and Liabilities - Derivative Instruments (Details 2) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2014
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items] |  |
Volatility | 96.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate | 91.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate
Expected term (years) | 1 year | 1 year 3 months
Risk-free interest rate | 0.26%us-gaap_FairValueAssumptionsRiskFreeInterestRate | 0.36%us-gaap_FairValueAssumptionsRiskFreeInterestRate
Dividend yield | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate
Exercise price | $ 0.14 us-gaap_FairValueAssumptionsExercisePrice | $ 0.14 us-gaap_FairValueAssumptionsExercisePrice
Common stock closing price | $ 0.30 us-gaap_SharePrice | $ 0.21 us-gaap_SharePrice
2011 [Member] |  |
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items] |  |
Volatility | 105.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember | 155.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember
Expected term (years) | 1 year 8 months 23 days | 1 year 11 months 23 days
Risk-free interest rate | 0.48%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember | 0.67%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember
Dividend yield | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember
Exercise price | $ 0.46 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember | $ 0.46 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember
Common stock closing price | $ 0.30 us-gaap_SharePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember | $ 0.21 us-gaap_SharePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_TwoThousandElevenMember
June 2013 [Member] |  |
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items] |  |
Volatility | 141.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member | 155.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member
Expected term (years) | 3 years 2 months 26 days | 3 years 5 months 26 days
Risk-free interest rate | 0.95%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member | 1.23%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member
Dividend yield | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member
Exercise price | $ 0.14 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member | $ 0.14 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member
Common stock closing price | $ 0.30 us-gaap_SharePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member | $ 0.21 us-gaap_SharePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_June2013Member
July 2013 |  |
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items] |  |
Volatility | 141.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member | 155.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member
Expected term (years) | 3 years 3 months 14 days | 3 years 6 months 14 days
Risk-free interest rate | 0.96%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member | 1.25%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member
Dividend yield | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member
Exercise price | $ 0.14 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member | $ 0.14 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member
Common stock closing price | $ 0.30 us-gaap_SharePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member | $ 0.21 us-gaap_SharePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_July2Member
December 2013 [Member] |  |
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items] |  |
Volatility | 152.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member | 151.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member
Expected term (years) | 3 years 8 months 23 days | 3 years 11 months 23 days
Risk-free interest rate | 1.07%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member | 1.37%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member
Dividend yield | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member
Exercise price | $ 0.17 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member | $ 0.25 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member
Common stock closing price | $ 0.30 us-gaap_SharePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member | $ 0.21 us-gaap_SharePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_December2013Member
March 2015 [Member] |  |
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items] |  |
Volatility | 141.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_March2015Member |
Expected term (years) | 4 years 11 months 16 days |
Risk-free interest rate | 1.36%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_March2015Member |
Dividend yield | 0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_March2015Member |
Exercise price | $ 0.215 us-gaap_FairValueAssumptionsExercisePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_March2015Member |
Common stock closing price | $ 0.30 us-gaap_SharePrice / us-gaap_FairValueByMeasurementFrequencyAxis = aphb_March2015Member |

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- Definition Agreed upon price for the exchange of the underlying asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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