Quarterly report pursuant to Section 13 or 15(d)

The Company - Additional Information (Detail)

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The Company - Additional Information (Detail)
0 Months Ended 0 Months Ended 3 Months Ended
Jan. 23, 2014
Mar. 31, 2014
Dec. 31, 2013
Jan. 23, 2014
Xenetic UK [Member]
Mar. 31, 2014
Xenetic UK [Member]
Description Of Business [Line Items]          
Issuance of new shares in exchange       56 56
Number of subsidiary shares exchanged for new shares       175 175
Common stock newly issued during the period 132,545,504        
Common stock, shares issued 136,045,504 146,740,692 130,575,516    
Common stock, shares outstanding 136,045,504 136,052,498 119,887,322    
Percentage of shares owned by former shareholders of the subsidiary       97.00%