Fair Value of Financial Assets and Liabilities - Derivative Instruments (Details 1) (USD $)	3 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Derivatives And Fair Value [Line Items]
Balance, Warrant Liability		$ 5,826,000us-gaap_WarrantsAndRightsOutstanding
Balance, Series B Redeemable Preferred Stock		12,320,000aphb_PrefferedBStockConversionLiability
Balance, Warrant Liability	14,727,000us-gaap_WarrantsAndRightsOutstanding	5,826,000us-gaap_WarrantsAndRightsOutstanding
Balance, Series B Redeemable Preferred Stock	19,425,000aphb_PrefferedBStockConversionLiability	12,320,000aphb_PrefferedBStockConversionLiability
Series B Redeemable Preferred Stock [Member]
Derivatives And Fair Value [Line Items]
Balance, Series B Redeemable Preferred Stock	12,320,000
Issuance Of Warrants	0
Changes In Estimated Fair Value	7,105,000
Balance, Series B Redeemable Preferred Stock	19,425,000
Warrant Liability [Member]
Derivatives And Fair Value [Line Items]
Balance, Warrant Liability	5,826,000
Issuance Of Warrants	4,211,000
Changes In Estimated Fair Value	4,690,000
Balance, Warrant Liability	$ 14,727,000

The amount represents changes in estimated fair values during the period.

No definition available.

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- Details

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- Definition

It represents the amount of issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Represents the total value of preferred stock conversion liability as on period end date.

+ References

No definition available.

+ Details

Name:	aphb_PrefferedBStockConversionLiability
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Data Type:	xbrli:monetaryItemType
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- Definition

Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Article 4

+ Details

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- Details

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- Details

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