Annual report pursuant to Section 13 and 15(d)

3. Acquisitions (Details - Acquisition)

v2.4.1.9
3. Acquisitions (Details - Acquisition) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jan. 23, 2014
Goodwill $ 3,465,157us-gaap_Goodwill $ 3,665,199us-gaap_Goodwill $ 3,592,073us-gaap_Goodwill  
Xenetic UK [Member]        
Cash       43,502us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember
Accounts receivable       145us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember
Prepaid expenses       8,643us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember
Property, plant and equipment       331,500us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember
Accounts payable       (354,079)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember
Accrued expenses       (36,146)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember
Long-term debt       (372,813)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember
Total identifiable net assets       (379,248)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember
Goodwill       4,129,248us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember
Total       $ 3,750,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= xbio_XeneticUkMember