Out-License of Marqibo, Zevalin, and Evolema in China Territory - Additional Information (Detail) - CASI Out-License [Member] $ in Millions		6 Months Ended
	Sep. 17, 2014 USD ($) product agreement	Jun. 30, 2015
Other Commitments [Line Items]
Number of agreements	3
Number of products | product	2
License agreement description		Additionally, under certain conditions which generally expire on September 17, 2019, we have a right to receive additional CASI common stock in order to maintain our post-investment ownership percentage if CASI issues additional securities.
Net proceeds through capital raising activities | $	$ 9.7
License agreement expiration date		Sep. 17, 2019