Description of Business - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013 Subsidiary
BioLab 612 [Member]
Subsidiary or Equity Method Investee [Line Items]
Number Of wholly-owned subsidiaries	1
Incuron LLC and Panacela Labs, Inc. [Member]
Subsidiary or Equity Method Investee [Line Items]
Number of majority owned subsidiaries	2