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8. Stockholders' Equity (Details Narrative) (FDS Pharma)
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12 Months Ended |
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Dec. 31, 2014
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FDS Pharma
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| Stock issued for services, shares |
3,244,784us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = xbio_FDSPharmaMember |
| X | ||||||||||
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- Definition
Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders. No definition available.
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