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Receivables and prepaid expenses (Tables) | 12 Months Ended
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Dec. 31, 2016
Receivables and Prepaid Expenses [Abstract] |
Receivables and Prepaid Expenses Disclosure [Table Text Block] |
|  | December 31, |
|  | 2016 |  | 2015 |
|  | U.S. dollars in thousands |
Government authorities |  | $ | 52 |  | $ | 145 |
Prepaid expenses |  |  | 611 |  |  | 915 |
|  | $ | 663 |  | $ | 1,060 |

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- References No definition available. + Details
Name: | orpn_ReceivablesAndPrepaidExpensesAbstract
Namespace Prefix: | orpn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Tabular disclosure of the various types of receivables and the amounts paid in advance for capitalized costs for the reporting period. + References No definition available. + Details
Name: | orpn_ReceivablesAndPrepaidExpensesDisclosureTableTextBlock
Namespace Prefix: | orpn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration