XML 41 R30.htm IDEA: XBRL DOCUMENT v3.10.0.1
Galectin Science LLC - Additional Information (Detail) - Galectin Sciences, LLC - USD ($)
1 Months Ended 3 Months Ended 45 Months Ended
Jan. 31, 2014
Sep. 30, 2018
Sep. 30, 2018
Investments in and Advances to Affiliates [Line Items]      
Equity method investment in Galectin Sciences LLC $ 400,000    
Subsequent capital contribution   $ 34,000 $ 1,756,000
Equity Method Investment, Ownership Percentage 50.00% 80.50% 80.50%
SBH Sciences, Inc      
Investments in and Advances to Affiliates [Line Items]      
Subsequent capital contribution     $ 123,000
Ownership Percentage   80.50%  
SBH Sciences, Inc | In Process Research and Development      
Investments in and Advances to Affiliates [Line Items]      
Estimated fair value of the IPR&D Contributed by SBH $ 400,000