XML 52 R32.htm IDEA: XBRL DOCUMENT v3.7.0.1
Commitments and Contingencies - Additional Information (Detail)
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2015
USD ($)
Nov. 30, 2015
USD ($)
shares
Jan. 31, 2015
Jun. 30, 2017
USD ($)
Amendments
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
Amendments
Milestone
Jun. 30, 2016
USD ($)
Milestone
Dec. 31, 2015
USD ($)
Other Commitments [Line Items]                
Rental expense       $ 141,000 $ 46,000 $ 182,000 $ 105,000  
Number of milestones achieved | Milestone           0 0  
Indemnification obligations amount       0   $ 0    
Contingent liabilities       $ 0   $ 0    
License Agreement [Member]                
Other Commitments [Line Items]                
Sales based milestone payment $ 36,000,000             $ 36,000,000
Royalty payment period 8 years              
License Agreement [Member] | Maximum [Member]                
Other Commitments [Line Items]                
Development and regulatory milestone payments $ 42,100,000             42,100,000
License Agreement [Member] | Minimum [Member]                
Other Commitments [Line Items]                
Sales required to achieve milestone payment 1,000,000,000              
Office of Chief Scientist [Member]                
Other Commitments [Line Items]                
Grants received 537,000             537,000
Scientific Development and Research, Inc. and Otodyne, Inc. [Member] | License Agreement [Member]                
Other Commitments [Line Items]                
License fees paid   $ 700,000            
Share issued as consideration | shares   9,780            
UMB [Member] | Master License Agreement [Member]                
Other Commitments [Line Items]                
Number of amendments | Amendments       4   4    
Annual maintenance fee           $ 10,000    
Percentage of non-royalty sub license income           10.00%    
UMB [Member] | Master License Agreement [Member] | Minimum [Member]                
Other Commitments [Line Items]                
Annual royalty           $ 50,000    
UMB [Member] | Master License Agreement [Member] | IND [Member] | Upon Filing IND Application For Licensed Product [Member]                
Other Commitments [Line Items]                
Milestone payment           50,000    
UMB [Member] | Master License Agreement [Member] | IND [Member] | Upon FDA Approval [Member]                
Other Commitments [Line Items]                
Milestone payment           100,000    
UMB [Member] | Master License Agreement [Member] | Investigational Drug Application Non Prostate Disease [Member] | Maximum [Member]                
Other Commitments [Line Items]                
Aggregate milestone payments associated with development of licensed product           $ 150,000    
Johns Hopkins [Member] | License Agreement [Member]                
Other Commitments [Line Items]                
Percentage of non-royalty sub license income     20.00%          
Potential milestone payments under license agreement               700,000
Milestone payments expensed during period               50,000
Additional liabilities for milestone payments $ 0             0
Johns Hopkins [Member] | License Agreement [Member] | Research and Development [Member]                
Other Commitments [Line Items]                
Upfront payment               75,000
Johns Hopkins [Member] | License Agreement [Member] | Minimum [Member]                
Other Commitments [Line Items]                
Annual royalty               $ 30,000