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Share-based Payments - Schedule of Share-based Compensation Warrants Activity (Details) (Warrant [Member], USD $)
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3 Months Ended |
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Mar. 31, 2015
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Warrant [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Number of Shares, Outstanding, Beginning |
1,989us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember |
| Number of Shares, Granted | |
| Number of Shares, Exercised | |
| Number of Shares, Forfeited | |
| Number of Shares, Canceled/Expired |
(1,989)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpirations / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember |
| Number of Shares, Outstanding, Ending | |
| Number of Shares, Exercisable | |
| Weighted Average Exercise Price, Outstanding, Beginning |
$ 71.76aker_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionOutstandingWeightedAverageNumberOfShare / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember |
| Weighted Average Exercise Price, Granted | |
| Weighted Average Exercise Price, Exercised | |
| Weighted Average Exercise Price, Forfeited | |
| Weighted Average Exercise Price, Canceled/Expired |
$ 71.76aker_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionCanceledOrExpiredInPeriodWeightedAverageExercisePrice / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_WarrantMember |
| Weighted Average Exercise Price, Outstanding, Ending | |
| Weighted Average Exercise Price, Exercisable | |
| Weighted Average Remaining Contractual Term, Exercisable | 0 years |
| Aggregate Intrinsic Value, Exercisable |
| X | ||||||||||
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- Definition
Share Based Compensation Arrangement By Share Based Payment Award Non Option Canceled Or Expired In Period Weighted Average Exercise Price. No definition available.
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- Definition
Sharebased Compensation Arrangement By Sharebased Payment Award Non Option Equity Instruments Exercisable Intrinsic Value1. No definition available.
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| X | ||||||||||
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- Definition
Number of equity instruments other than options exercisable, including both vested and non-vested instruments. No definition available.
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| X | ||||||||||
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- Definition
Sharebased Compensation Arrangement By Sharebased Payment Award Non Option Equity Instruments Exercisable Weighted Average Remaining Contractual Term1. No definition available.
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| X | ||||||||||
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- Definition
Share Based Compensation Arrangement By Share Based Payment Award Non Option Exercisable In Period Weighted Average Exercise Price. No definition available.
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| X | ||||||||||
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- Definition
Share Based Compensation Arrangement By Share Based Payment Award Non Option Exercised In Period Weighted Average Exercise Price. No definition available.
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| X | ||||||||||
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- Definition
Share Based Compensation Arrangement By Share Based Payment Award Non Option Forfeited In Period Weighted Average Exercise Price. No definition available.
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| X | ||||||||||
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- Definition
Share Based Compensation Arrangement By Share Based Payment Award Non Option Granted In Period Weighted Average Exercise Price. No definition available.
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| X | ||||||||||
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- Definition
Weighted Average Exercise Price, Outstanding, Beginning. No definition available.
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- Details
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| X | ||||||||||
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- Definition
Number of non-option equity instruments exercised by participants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares under non-option equity instrument agreements for which rights to exercise lapsed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net number of non-option equity instruments granted to participants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of equity instruments other than options outstanding, including both vested and non-vested instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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